surgical technique - limelight networkssynthes.vo.llnwd.net/o16/llnwmb8/int mobile/synthes...

56
Surgical Technique

Upload: haxuyen

Post on 30-Mar-2018

290 views

Category:

Documents


6 download

TRANSCRIPT

Page 1: Surgical Technique - Limelight Networkssynthes.vo.llnwd.net/o16/LLNWMB8/INT Mobile/Synthes International... · This surgical technique provides instruction on the ... Slide the tibial

Surgical Technique

Page 2: Surgical Technique - Limelight Networkssynthes.vo.llnwd.net/o16/LLNWMB8/INT Mobile/Synthes International... · This surgical technique provides instruction on the ... Slide the tibial

Contemporary total knee arthroplasty demands high performance

instrumentation that provides enhanced efficiency, precision, and flexibility.

Through a programme of continuous development, DePuy Orthopaedics now

offers a single system of High Performance instruments that supports your

approach to knee replacement surgery.

This surgical technique provides instruction on the implantation

of the LCS® family of rotating platform knees.

There are several approach options available to the surgeon, the most

common are: medial parapatellar, mini-midvastus and mini-subvastus.

Page 3: Surgical Technique - Limelight Networkssynthes.vo.llnwd.net/o16/LLNWMB8/INT Mobile/Synthes International... · This surgical technique provides instruction on the ... Slide the tibial

Contents

Surgical Summary 2

Incision and Exposure 4

Patella Resection 7

Tibial Jig Assembly 9

Lower Leg Alignment 10

Tibial Resection 13

Femoral Sizing 14

I.M. Hole Preparation 15

Long Leg Alignment (Optional Simulated Distal Cut) 16

A/P Block Assembly 17

Femoral Rotation 18

A/P Resection 19

Flexion Gap Assessment 20

Distal Femoral Alignment 21

Distal Cutting Block Assembly 22

Distal Cutting Block and Valgus Assessment 23

Extension Gap Assessment and Distal Femoral Resection 24

Final Femoral Preparation 25

Tibial Preparation 26

Tibial Preparation - M.B.T. 27

Tibial Preparation - M.B.T. DUOFIX™ 28

Trial Reduction 29

Patella Preparation 30

Cementing Technique 31

Final Component Implantation 32

Closure 33

Appendix A: Tibial I.M. Jig Alignment 34

Appendix B: Spiked Uprod 37

Appendix C: PS Final Femoral Preparation 40

Page 4: Surgical Technique - Limelight Networkssynthes.vo.llnwd.net/o16/LLNWMB8/INT Mobile/Synthes International... · This surgical technique provides instruction on the ... Slide the tibial

2

Step 1: Incision and exposure

Step 9: Flexion gap assessment

Step 2: Patellar resection Step 3: Lower leg alignment

Step 7: Long leg alignment

Step 13: Final component

implantation

Step 8: Femoral rotation

and A/P resection

Surgical Summary

Page 5: Surgical Technique - Limelight Networkssynthes.vo.llnwd.net/o16/LLNWMB8/INT Mobile/Synthes International... · This surgical technique provides instruction on the ... Slide the tibial

3

Step 10: Distal femoral resection Step 11: Final femoral preparation Step 12: Trial reduction

Step 4: Tibial resection Step 5: Femoral sizing Step 6: I.M. hole preparation

Page 6: Surgical Technique - Limelight Networkssynthes.vo.llnwd.net/o16/LLNWMB8/INT Mobile/Synthes International... · This surgical technique provides instruction on the ... Slide the tibial

4

The LCS High Performance instrumentation is

designed for use with and without CI™ computer

assisted surgery, for both open and less invasive

approaches to the knee.

Make a straight midline skin incision starting from

2 to 4 cm above the patella, passing over the

patella, and ending at the tibial tubercle (Figure

1). The three most common approach options for

the surgeon are: medial parapatellar,

mini-midvastus, and mini-subvastus.

Incision and Exposure

Figure 1

Figure 2

For surgeons choosing the medial

parapatellar (Figure 2):

Make a medial parapatellar incision through the

retinaculum, the capsule and the synovium, with

neutral alignment or with varus deformity. The

medial parapatellar incision starts proximal (4 cm)

to the patella, incising the rectus femoris tendon

longitudinally, and continues distally around the

medial aspect of the patella and ligamentum

patellae stopping just medial to the tibial tubercle

(Figure 2). Following this incision, either evert or

luxate the patella laterally to expose the entire

tibio-femoral joint.

Page 7: Surgical Technique - Limelight Networkssynthes.vo.llnwd.net/o16/LLNWMB8/INT Mobile/Synthes International... · This surgical technique provides instruction on the ... Slide the tibial

5

For surgeons choosing the mini- midvastus

option (Figure 3):

The midvastus approach starts 3-4 cm in the

middle of the Vastus Medialis Obliquus (VMO),

running distal and lateral to the muscle fibres

towards the rectus femoris, splitting the VMO.

Continue the incision distally around the medial

aspect of the patella and ligamentum patella

stopping just medial to the tibial tubercle

(Figure 3). Following this incision, luxate the

patella laterally to expose the entire tibio-femoral

joint.

Incision and Exposure

Figure 3

Figure 4

For surgeons choosing the subvastus option

(Figure 4):

The subvastus approach starts by lifting the VMO

with a 90 degree stomp hook. A 3-4 cm incision

is made in the capsule underneath the VMO,

running horizontal from medial to lateral towards

the mid portion of the patella. The incision

continues distally around the medial aspect of

the patella and ligamentum patellae stopping

just medial to the tibial tubercle. Following this

incision, luxate the patella laterally to expose the

entire tibio-femoral joint.

Page 8: Surgical Technique - Limelight Networkssynthes.vo.llnwd.net/o16/LLNWMB8/INT Mobile/Synthes International... · This surgical technique provides instruction on the ... Slide the tibial

6

Excise hypertrophic synovium if present and a

portion of the infrapatellar fat pad to allow access

to the medial, lateral and intercondylar spaces.

Remove all osteophytes at this stage as they can

affect soft tissue balancing (Figure 5).

Note: Particular attention should be given

to posterior osteophytes as they may affect

flexion contracture or femoral rotation.

Evaluate the condition of the posterior cruciate

ligament (PCL) and resect the PCL if required.

Incision and Exposure

Figure 5

Page 9: Surgical Technique - Limelight Networkssynthes.vo.llnwd.net/o16/LLNWMB8/INT Mobile/Synthes International... · This surgical technique provides instruction on the ... Slide the tibial

7

Resection and preparation of the patella can be

performed sequentially or separately, as desired,

and can be performed at any time during surgery.

Measure the thickness of the patella and calculate

the level of bone resection (Figure 6). The

thickness of the resurfaced patella should be the

same as the natural patella. There should be equal

amounts of bone remaining in the medial / lateral

and superior / inferior portions of the patella.

Select a patellar stylus that matches the thickness

of the implant to be used. Slide the appropriate

size stylus into the saw capture of the resection

guide. The minimum depth of the patellar

resection should be no less than 10 mm (Figure 7).

However, when the patella is small, a minimal

residual thickness of 12 mm should be maintained

to avoid fracture.

A 12 mm remnant stylus can be attached to the

resection guide resting on the anterior surface of

the patella, to avoid over resection (Figure 8).

Place the leg in extension and position

the patellar resection guide with the sizing stylus

against the posterior cortex of the patella with the

serrated jaws at the superior and inferior margins

of the articular surface. Close the jaws to firmly

engage the patella (Figure 9).

13-15 mm

Bone resection

Posterior

Anterior

Figure 6

Figure 7

Example: for a standard patella 25 mm thick, resect 11.6 mm of articular surface, leaving 13.4 mm of residual bone to accommodate the 10.9 mm thickness implant.

Figure 8

Figure 9

Patellar Resection

Size Lg+ - resects 13 mm

Sizes Sm/Sm+/Med - resects 10 mm

Sizes Std/Std+/Lg - resects 11.6 mm

Page 10: Surgical Technique - Limelight Networkssynthes.vo.llnwd.net/o16/LLNWMB8/INT Mobile/Synthes International... · This surgical technique provides instruction on the ... Slide the tibial

8

Tilt the patella laterally to an angle of

40 to 60 degrees (Figure 10).

Remove the stylus and perform the resection

using an oscillating saw through the saw capture

and flush with the cutting surface (Figure 11).

A patellar wafer can be hand placed on the

resected surface if required, to protect the patellar

bone bed.

Figure 10

Figure 11

Patella wafer

Patellar Resection

Page 11: Surgical Technique - Limelight Networkssynthes.vo.llnwd.net/o16/LLNWMB8/INT Mobile/Synthes International... · This surgical technique provides instruction on the ... Slide the tibial

9

The tibia can now be resected to create more

room in the joint space.

Assemble the appropriate 7 degree, left / right or

symmetrical cutting block to the tibial jig uprod.

Slide the tibial jig uprod into the ankle clamp

assembly (Figure 12).

For tibial resection using intramedullary alignment,

see Appendix A. For tibial resection using spiked

uprod, see Appendix B.

Tibial cutting blocks(Left / Right 7 degree)

Press down to attach cutting block

Tibial jig uprod

Tibial Jig Assembly

Figure 12

Page 12: Surgical Technique - Limelight Networkssynthes.vo.llnwd.net/o16/LLNWMB8/INT Mobile/Synthes International... · This surgical technique provides instruction on the ... Slide the tibial

10

Place the knee in 90 degrees of flexion with the

tibia translated anteriorly and stabilised. Place the

ankle clamp proximal to the malleoli (Figure 13).

Align the proximal central marking on the tibia

cutting block with the medial one third of the

tibial tubercle to set rotation (Figure 14).

To provide stability, insert a central pin through

the vertical slot in the cutting block (Figure

15). Push the quick release button to set the

approximate resection level (Figure 16).

Varus / Valgus

Align the tibial jig ankle clamp parallel to

the transmalleolar axis to establish rotational

alignment (Figure 15). The midline of the tibia

is approximately 3 mm medial to the transaxial

midline. Translate the lower assembly medially

(usually to the second vertical mark), by pushing

the varus / valgus adjustment wings (Figure 15).

There are vertical scribe marks for reference

aligning to the middle of the talus.

Slope

The tibial jig uprod and ankle clamp are designed

to prevent an adverse anterior slope. On an

average size tibia this guide gives approximately

a 7 degree (Figure 17) tibial slope when the slope

adjustment is translated posteriorly until it hits

the stop.

Note: This may not give a true 7 degree slope.

Lower Leg Alignment

Quick release button

Figure 13

Figure 14

Vertical pin slot

Varus / valgus wings

Figure 15

Figure 16

Centre of the tibial adapter

Page 13: Surgical Technique - Limelight Networkssynthes.vo.llnwd.net/o16/LLNWMB8/INT Mobile/Synthes International... · This surgical technique provides instruction on the ... Slide the tibial

11

The angle of the tibial slope can be increased to

greater than 7 degrees should the patient have a

greater natural slope (Figure 17). First, unlock the

slide locking position and then translate the tibial

slope adjuster anteriorly until the desired angle is

reached.

As each patient’s anatomy varies, the tibial jig

uprod can be used for both smaller and larger

patients. The length of the tibia influences the

amount of slope when translating the adapter

anteriorly. The 7 degree default position can be

overridden by pressing the slope override button

and moving the slope adjustment closer to the

ankle.

On the uprod 5, 6 and 7 zones are present, which

correspond to the length of the tibia. These

markings can by used to fine tune the amount of

slope.

When the uprod shows a zone marked "7"

this indicates that when the lower assembly is

translated 7 mm anterior, it will give an additional

1 degree of posterior slope (Figure 18).

Figure 17

Figure 18

Lower Leg Alignment

Slope overide button

Slope adjustment lock

Page 14: Surgical Technique - Limelight Networkssynthes.vo.llnwd.net/o16/LLNWMB8/INT Mobile/Synthes International... · This surgical technique provides instruction on the ... Slide the tibial

12

Height

When measuring from the less damaged side of

the tibial plateau set the stylus to 8 mm or 10

mm. If the stylus is placed on the more damaged

side of the tibial plateau, set the stylus to 0 mm

or 2 mm.

Adjustment of resection height on the stylus

should be done outside the joint space before

locating the stylus in the cutting block.

If planning to resect through the slot, position

the foot of the tibial stylus marked “slotted” into

the slot of the tibial cutting block (Figure 19). If

planning to resect on top of the cutting block,

place the foot marked “non-slotted” into the

cutting slot.

Note: There is a 4 mm difference between the

top of the tibial cutting block and the slot.

The final resection level can be dialled in by

rotating the fine-tune mechanism clockwise

(upward adjustment) or counterclockwise

(downward adjustment). Care should be taken

with severe valgus deformity, not to over resect

the tibia.

Figure 19

Lower Leg Alignment

Fine tune adjustment

Non-slotted stylus foot

Page 15: Surgical Technique - Limelight Networkssynthes.vo.llnwd.net/o16/LLNWMB8/INT Mobile/Synthes International... · This surgical technique provides instruction on the ... Slide the tibial

13

After the height has been set, pin the block

through the 0 mm set of holes (the stylus may

need to be removed for access). +/-2 mm pinholes

are available on the resection blocks to further

adjust the resection level where needed.

The block can be securely fixed with a convergent

pin. Resect the tibia using a 1.47 mm saw blade

(Figure 20) and remove the resected bone.

Remove the central pin from the slot and

divergent locking pin if used. The remaining tibial

pins may be left in place to aid alignment during

the procedure.

Check the depth and accuracy of the bone cut

before removing the tibial cutting block. A 2

degree varus / valgus recut block is available if

required.

Tibial Resection

Figure 20

Page 16: Surgical Technique - Limelight Networkssynthes.vo.llnwd.net/o16/LLNWMB8/INT Mobile/Synthes International... · This surgical technique provides instruction on the ... Slide the tibial

14

Size the femur using either the femoral templates

or the femoral sizing calliper. If the femoral

template is used, the template that corresponds

in size to the outer profile of the femoral condyle

will indicate the size of femoral component to

be selected (Figure 21). It is important to use the

condyle that is least affected to reference the

femoral size. This may be the lateral condyle in

varus knees and the medial condyle in valgus

knees. Any osteophytes compromising the sizing

should be removed.

Alternatively, assess the M/L and A/P dimensions

using the sizing calliper (Figures 22 and 23). The

fixed end of the sizing calliper rests on the medial

condyle and provides a direct measurement of

implant size. The reverse face of the calliper is

marked in millimetres.

The anterior femoral cortex is an important

reference for sizing, as the final femoral

component must be seated here.

Femoral Sizing

Figure 21

Figure 22

Figure 23

Dimensions of the LCS ComPLETE™

femoral (mm)

Size A/P (mm) M/L (mm)

Small 49.6 53.8

Small+ 54.7 59.2

Medium 57.8 61.9

Standard 60.9 64.6

Standard+ 65.4 69.6

Large 70.4 74.9

Large+ 75.8 80.6

Page 17: Surgical Technique - Limelight Networkssynthes.vo.llnwd.net/o16/LLNWMB8/INT Mobile/Synthes International... · This surgical technique provides instruction on the ... Slide the tibial

15

Depress the sizing button and slide the I.M. hole

locator until the chosen femoral size appears

directly above the line (Figure 24). Position the

yoke beneath the muscle anteriorly, on the

periosteum, and centre the device on the anterior

femoral shaft.

An extramedullary alignment rod can be placed

through the handle of the I.M. hole locator to aid

alignment.

Carefully position the I.M. hole locator between

the epicondyles. The position of the femoral I.M.

hole is generally 3-5 mm medial to the apex of

the intercondylar notch and 7-10 mm anterior to

the origin of the PCL. Drawing a centring mark or

Whiteside’s Line and the preoperative X-ray may

be useful to assist precise location of the I.M. hole

(Figure 25).

At this moment the ultimate rotational position of

the femoral implant is not yet defined. Pins can

be placed in the I.M. hole locator to assist with

additional stability. The device may also be lightly

impacted onto the distal femur for additional

stability.

Open up the I.M. canal on the distal femur using

the 9 mm I.M. starter drill (Figure 26).

Take care to ensure that the drill avoids the

cortices. The drill may be toggled slightly to

prevent over-pressurisation of the I.M. canal.

Excessive toggling may result in an overly

wide I.M. hole and should be avoided.

Remove the pins, then the I.M. hole locator and

clear the canal of fat and fluid.

I.m. Hole Preparation

Figure 24

Figure 25

Figure 26

Sizing button

Femoral size selected line

Sm/Sm+ Med/Std+ Lg/Lg+

Whiteside’s line

I.M. hole location

Page 18: Surgical Technique - Limelight Networkssynthes.vo.llnwd.net/o16/LLNWMB8/INT Mobile/Synthes International... · This surgical technique provides instruction on the ... Slide the tibial

16

Select the appropriate I.M. plate (3-8 degree

angle) as determined during preoperative

X-ray analysis. Insert the I.M. plate into the

distal femoral I.M. canal taking care to avoid

over-pressurisation (Figure 27).

Place the knee in full extension. Insert a 10 mm

spacer block onto the I.M. plate and into the

extension space to assess alignment (Figure 28).

The surgeon should be aware that the I.M. canal

is providing an approximation of the correct

anatomic axis.

The extension gap must be rectangular in

configuration with the leg in full extension. If the

gap is not rectangular the extension gap is not

balanced and appropriate soft tissue balancing

must be performed.

Equal medial and lateral lift-off should not exceed

3-5 mm. This is visually assessed by judging the

position of the I.M. plate relative to the tibial

resection.

The extramedullary alignment rod attached

through the spacer block handle may be helpful in

assessing alignment (Figure 29).

If the extension gap is too small for the standard

10 mm block, the 4 mm spacer block can be

used. If this is required, additional proximal tibial

resection may be indicated. The most common

cause for a tight extension gap is the presence of

a fixed flexion contracture. This may be caused

by posterior femoral osteophytes or a contracture

of the capsule itself. In this case, removal of the

osteophytes or release of the capsule may be

indicated.

Long Leg Alignment (Optional Simulated Distal Cut)

Figure 27

Figure 28

Figure 29

Page 19: Surgical Technique - Limelight Networkssynthes.vo.llnwd.net/o16/LLNWMB8/INT Mobile/Synthes International... · This surgical technique provides instruction on the ... Slide the tibial

Place the anterior femoral stylus fully into anterior slot of the A/P block

Lower the assembly onto the I.M. plate

The stylus should rest on the anterior femur at the approximate exit point of the anterior cut

Removable handles may be used

Locking mechanism

M/L width of implants

Adjust the A/P block anteriorly or posteriorly using the scale as a reference

The A/P locking handle can be used to help secure the lock

17

Remove the spacer block and return the knee

joint to flexion with the I.M. plate still within

the I.M. canal. If an angled I.M. plate was

not used during long leg alignment, select

the 0 Degree I.M. plate and insert into the

I.M. canal. Assemble the femoral stylus to the

appropriate size A/P resection block (Figure 30).

The stylus is fully inserted into the anterior

slot on the A/P block and references the

level of the final anterior cut. Ensure the

A/P resection block is unlocked and lower the

assembly onto the I.M. plate. Translate the

block posteriorly until the anterior femoral stylus

contacts the anterior cortex of the femur.

The stylus should rest on the anterior femur

at the approximate exit point of the anterior

cut (Figure 30). If the recommended anterior cut

is either suggesting notching the anterior femoral

cortex, or cutting air above the anterior femoral

cortex, the A/P resection block can be adjusted

anteriorly, or posteriorly, in 1.25 mm increments

using the scale as a reference.

Fix the position of the A/P resection block by

turning the locking mechanism (Figure 31).

The AP locking handle shown in Figure 31 can be

used to help secure the lock. Final rotation has

not been fixed at this stage. Remove the anterior

femoral stylus.

Figure 30

Figure 31

A/P Block Assembly

Page 20: Surgical Technique - Limelight Networkssynthes.vo.llnwd.net/o16/LLNWMB8/INT Mobile/Synthes International... · This surgical technique provides instruction on the ... Slide the tibial

12.5 mm

Tibial Shims

15 mm

17.5 mm

20 mm

18

Introduce the femoral guide positioner into the

joint space engaging the middle slot of the A/P

resection block (Figure 32). The knee may be

slightly flexed or extended until the positioner lies

flat on the previously resected proximal tibia.

If the collateral ligaments are balanced and the

joint space is too tight to accept the femoral

guide positioner, the tibial cut and chosen A/P size

may need to be reviewed. If too tight, the tibial

cutting block can be placed back onto the tibial

fixation pins, selecting a more proximal row of

holes, lowering the block and resecting additional

proximal tibial bone.

If the joint space is too lax, tibial shims may be

added to ensure that the positioner fits snugly

(Figure 33). If tibial shims greater than 15 mm

are required to remove the laxity in flexion,

the A/P sizing may need to be re-evaluated. If

required, the femoral component may be upsized

or downsized at this stage, by selecting the next

sized A/P resection block and sliding it onto the

I.M. plate.

The A/P femoral resection blocks are anterior-

referencing (i.e. the same distance from the

anterior cutting surface regardless of component

size) so any additional resection will remove bone

from the posterior condyles.

Femoral Rotation

Figure 32

Figure 33

Page 21: Surgical Technique - Limelight Networkssynthes.vo.llnwd.net/o16/LLNWMB8/INT Mobile/Synthes International... · This surgical technique provides instruction on the ... Slide the tibial

19

Note that down sizing by one size will result in

approximately 5 mm more bone being removed

from the posterior condyles, effectively increasing

the flexion gap by 5 mm. Re-evaluate the tibial

alignment using the external alignment rod,

passed through the hole in the femoral guide

positioner (Figure 34).

The femoral rotation is set by the femoral guide

positioner and is based on the principle of equal

compartment tension and balanced collateral

ligaments. Using the femoral guide positioner this

balance should automatically occur, because the

femur can freely rotate around the I.M. plate.

Rotation is correct when the collateral ligaments

are tensioned and balanced. Conduct a final

check of the anterior resection level with the

visualisation wing. All adjustments should be

made prior to pinning the block. Pin the A/P

resection block to the distal femur using the

two neutral central holes (marked with a

square) before cutting.

Remove the femoral guide positioner. Resect the

anterior cortex through the slots using a 1.47 mm

saw blade (Figure 35) and remove the resected

bone. The final size of the femoral component

can be checked and changed if necessary. The

posterior femoral condyles are then resected.

Figure 34

Figure 35

A/P Resection

Page 22: Surgical Technique - Limelight Networkssynthes.vo.llnwd.net/o16/LLNWMB8/INT Mobile/Synthes International... · This surgical technique provides instruction on the ... Slide the tibial

20

Once the resections are completed, remove the

pins, cutting block and I.M. plate.

To measure the flexion gap, insert the spacer

block assembly into the flexion gap.

The assembly consists of a 10 mm base handle

(equivalent to the final tibial baseplate and tibial

insert thickness) plus a femoral shim (equivalent

to the thickness of the femoral condyle on the

implant) (Figure 36).

Assess medial and lateral tension, as the

compartments should be equal. If necessary, a

tibial shim may be added to the spacer block

(Figure 37).

Make a note of the thickness of the spacer

block utilised for the flexion gap. This will

subsequently determine the extension gap.

Flexion Gap Assessment

Figure 36

Figure 37

Page 23: Surgical Technique - Limelight Networkssynthes.vo.llnwd.net/o16/LLNWMB8/INT Mobile/Synthes International... · This surgical technique provides instruction on the ... Slide the tibial

21

Preoperative X-rays are used to define the angle

between the femoral anatomical and mechanical

axes.

Femoral Alignment

Set the distal femoral alignment guide to the

appropriate valgus angle (3-8 degrees) determined

during preoperative X-ray analysis and lock the

guide (Figure 38).

Attach the T-handle to the I.M. rod and slowly

introduce the rod into the medullary canal, to the

level of the isthmus (Figure 39).

The T-handle is removed and the distal femoral

alignment guide is placed on the I.M. rod

(Figure 40).

Distal Femoral Alignment

Figure 38

Figure 39

Figure 40

Page 24: Surgical Technique - Limelight Networkssynthes.vo.llnwd.net/o16/LLNWMB8/INT Mobile/Synthes International... · This surgical technique provides instruction on the ... Slide the tibial

Pull together to connect cutting block

Pop-up saw capture in open position

22

The distal femoral outrigger and distal cutting

block are assembled and then lowered down

through the distal femoral alignment guide

(Figures 41, 42 and 43).

The distal cutting block must have the pop-up

saw capture open to assemble onto the distal

femoral outrigger. The pop-up saw capture can be

opened by inserting a sawblade into the slot.

The distal femoral alignment guide should be

placed into the notch of the femur.

It is important that the body of the distal

cutting block remains flush on the anterior

femoral cut (Figure 43).

Figure 41

Distal Cutting Block Assembly

Figure 42

Figure 43

Page 25: Surgical Technique - Limelight Networkssynthes.vo.llnwd.net/o16/LLNWMB8/INT Mobile/Synthes International... · This surgical technique provides instruction on the ... Slide the tibial

Body of distal cutting block rests on

the anterior cortex

Saw capture of distal cutting block

23

Ensure the body of the distal cutting block is flat

on the anterior femur before pinning through

the neutral 0 mm pin holes. This will allow +2.5

or –2.5 mm adjustments to be made if required.

Pre-drilling is recommended. The distal femoral

outrigger is removed from the distal femoral

alignment guide and distal cutting block.

Replace the T-handle onto the I.M. rod and

remove the distal femoral alignment guide and

I.M. rod, leaving the distal cutting block pinned to

the anterior cortex (Figure 44).

Assess varus / valgus alignment using the external

alignment tower. With the femur in extension and

in neutral rotation, correct alignment is indicated

when the proximal end of the external alignment

rod is centred over the head of the femur, or

approximately two finger breadths medial to the

anterior superior iliac spine (Figure 45).

If alignment is found to be other than desired,

adjust the valgus angle by reassembling the

femoral alignment guide and outrigger to the

distal cutting block. Alternatively, the distal varus

/ valgus 2 degree recut block can be placed on

the pins. It is not recommended to perform

any further soft tissue releases at this

stage. Release may correct the deformity in

extension, but create instability in flexion.

Figure 44

Figure 45

Distal Cutting Block and Valgus Assessment

Page 26: Surgical Technique - Limelight Networkssynthes.vo.llnwd.net/o16/LLNWMB8/INT Mobile/Synthes International... · This surgical technique provides instruction on the ... Slide the tibial

1.25 mm resection block and 2 degree varus / valgus block

Pop-up saw capture closed

24

At this stage, the anticipated extension gap is

assessed.

Ensure that the pop-up saw capture on the distal

cutting block is pushed in. The distal face now

represents the level of the cut.

Fully extend the knee, and assess the gap

between the distal resection block and the cut

proximal tibia.

The extension gap must equal the flexion gap.

If the spacer block is parallel and aligns with

the tibial cut while medial and lateral tissues

are equally tensioned, the distal cutting block

is correctly located. The distal cutting block can

be positioned using a different row of holes (2.5

mm apart) to resect a greater or lesser amount of

distal femur to ensure the spacer block will fit in

the extension gap (Figure 46).

Ensure that the pop-up saw capture on the distal

cutting block is open. Conduct a final check of

the distal resection level with the visualisation

wing. The distal femoral resection is performed

through the cutting slot at 15 degrees using a

1.47 mm saw blade (Figure 47). Extend the knee

and insert the spacer block (with the tibial shim

if it was used for the flexion gap) to check the

extension gap created by the distal femoral cut

(Figure 48). If required the distal resection can be

retaken by moving the 2.5 mm cutting block back

one row of pins, or by using either a 1.25 mm

resection block or varus / valgus 2 degree recut

block. Remove pins after the final distal resection

has been made.

Extension Gap Assessment and Distal Femoral Resection

Figure 46

Figure 47

Figure 48

Page 27: Surgical Technique - Limelight Networkssynthes.vo.llnwd.net/o16/LLNWMB8/INT Mobile/Synthes International... · This surgical technique provides instruction on the ... Slide the tibial

A centreline is engraved on the block representing the mid point of the final implant

25

The appropriate sized femoral 4-in-1 cutting block

is selected and positioned on the resected anterior

and distal surfaces of the femur. The fixation pin

hole bosses on each side of the block correspond

exactly to the M/L dimension of the final implant.

A centreline is engraved on the block representing

the mid point of the final implant.

Both can be used to visually place the instrument

in the correct M/L position (Figure 49).The block

is pinned in place through the fixation pinholes

with at least two pins before any bone cuts are

made. Ensure the cutting block sits flush on the

anterior and distal resections. Final resections are

made using a 1.47 mm saw blade in the following

order:

Chamfer cuts, Sulcus cut and Peg (Lug) holes

(Figures 50, 51 and 52).

For PS final femoral preparation after

chamfer cuts see Appendix C.

Note: After femoral preparation and before

implantation, it is essential to irrigate the

surgical site to remove any potential debris.

Alternative Femoral Cutting Block

Select the appropriate sized femoral cutting

block with feet and position on the resected

anterior, posterior and distal surfaces of the femur

(Figure 53). The outer edge of the posterior feet

correspond exactly to the M/L dimension of the

final implant. Resection is in the same order as

stated previously. The posterior chip cut can be

taken guided from the posterior distal edge of the

block.

Final Femoral Preparation

Figure 49

Figure 50 Figure 51

Figure 52 Figure 53

Page 28: Surgical Technique - Limelight Networkssynthes.vo.llnwd.net/o16/LLNWMB8/INT Mobile/Synthes International... · This surgical technique provides instruction on the ... Slide the tibial

Tray fixation pins

26

Tibial Preparation

Align the tibial trial to fit with the tibia for

maximum coverage or, if electrocautery marks are

present, use these for alignment. Pin the trial with

two pins. The tray trial allows for M.B.T. keeled,

M.B.T. non-keeled and M.B.T. DUOFIX implant

preparation (Figure 54).

Attach the M.B.T. drill tower to the tray trial

(Figure 55). Control the tibial reaming depth by

inserting the reamer to the appropriate coloured

line (Figure 56). An optional modular drill stop is

available to provide a hard stop when reaming.

See table for appropriate size.

Tibial Preparation

Figure 54

Figure 55

Note: For cemented preparation, select

the “Cemented” instruments, and for

non-cemented or line-to-line preparation,

select the “Non-Cemented” tibial instruments.

The Cemented instruments will prepare for a

1 mm cement mantle around the periphery of

the implant.

Figure 56

Tray Size Line Colour

1-1.5 Green

2-3 Yellow

4-7 Blue

Page 29: Surgical Technique - Limelight Networkssynthes.vo.llnwd.net/o16/LLNWMB8/INT Mobile/Synthes International... · This surgical technique provides instruction on the ... Slide the tibial

27

Keeled Tray option

If an M.B.T keeled tray is to be employed and

the bone of the medial or lateral plateau is

sclerotic, it is helpful to initially prepare the keel

slot with an oscillating saw or high speed burr.

Assemble the M.B.T. punch impactor to the

appropriately-sized M.B.T. keel punch by pressing

the side button and aligning the vertical marks on

both impactor and keel punch (Figure 57). Insert

assembly into the M.B.T. drill tower, taking care

to avoid malrotation. Impact the assembly into

the cancellous bone until the shoulder of the keel

punch impactor is in even contact with the M.B.T.

drill tower (Figure 58).

Non-Keeled Tray option

For a non-keeled tray option, assemble the M.B.T.

punch impactor to the appropriately sized M.B.T.

non-keeled punch (Figure 59) and follow the same

routine as Figures 57 and 58.

Final Trialing option

Remove the M.B.T. punch impactor from the

punch by pressing the side button and remove

the drill tower as well. Place the trial femoral

component on the distal femur. Place the

appropriate tibial insert trial onto the tray trial and

repeat previous trial evaluation. A secondary and

final trialing step can be performed after tibial

preparation.

Tibial Preparation - m.B.T.

Figure 57

Figure 58

Figure 59

Page 30: Surgical Technique - Limelight Networkssynthes.vo.llnwd.net/o16/LLNWMB8/INT Mobile/Synthes International... · This surgical technique provides instruction on the ... Slide the tibial

Tray fixation pins

28

m.B.T. DUoFIX Tray option

Pin the trial with 2 pins (Figure 60).

Attach the M.B.T. drill tower to the tray

trial (Figure 61).

Control the tibial reaming depath by inserting the

DUOFIX reamer to the appropriate coloured line

(Figure 62).

An optional modular drill stop is available to

provide a hard stop when reaming. See table

for appropriate size. For a DUOFIX Tray option,

assemble the M.B.T. punch impactor to the

appropriately sized M.B.T. DUOFIX punch and

follow the same routine as Figures 57 and 58.

Tibial Preparation - m.B.T. DUoFIX

Figure 60 Figure 61

Tray Size Line Colour

1-1.5 Green

2-3 Yellow

4-7 Blue

To finalise the rotational position, the four peg

holes must be prepared. Attach the tray trial

alignment handle and verify that orientation of

the tibial trial corresponds to the markings on the

tibia. Pin the tibial template, and drill the four peg

holes, taking care to avoid malrotation (Figure 63)

Figure 62 Figure 63

Page 31: Surgical Technique - Limelight Networkssynthes.vo.llnwd.net/o16/LLNWMB8/INT Mobile/Synthes International... · This surgical technique provides instruction on the ... Slide the tibial

29

Trialing

Remove the punch impactor from the punch by

pressing the side button and remove the drill

tower as well. Place the appropriate tibial insert

trial onto the M.B.T. trial tray (Figure 64). The

knee is placed in deep flexion.

Impact the femoral trial onto the distal femur

using the femoral impactor (Figure 65).

A curved osteotome can be used to

take the posterior chip cuts (Figure 66).

It is important to take the posterior chip cuts and

remove any remaining osteophytes, as it may

influence flexion.

Note: After tibial preparation and before

implantation, it is essential to irrigate the

surgical site to remove any potential debris.

Trial Reduction

Figure 64

Figure 65

Figure 66

Page 32: Surgical Technique - Limelight Networkssynthes.vo.llnwd.net/o16/LLNWMB8/INT Mobile/Synthes International... · This surgical technique provides instruction on the ... Slide the tibial

30

Remove the patellar wafer. The three pegs

are marked for the trial patella component.

The template is removed and the trial patellar

component is pressed onto the resected patellar

surface in the same location (Figure 67).

Patellar Preparation

Figure 67

Figure 68

Reduce the patella and evaluate tracking through

flexion and extension. The metal portion of the

patella should remain parallel with the knee

joint. Final peg holes can be drilled when all

adjustments have been made (Figure 68).

Page 33: Surgical Technique - Limelight Networkssynthes.vo.llnwd.net/o16/LLNWMB8/INT Mobile/Synthes International... · This surgical technique provides instruction on the ... Slide the tibial

31

Prepare the sclerotic bone to ensure a continuous

cement mantle with good cement interdigitation.

This can be done by drilling holes and cleansing

the bone by pulsatile lavage (Figure 69). Any

residual small cavity bone defects should be

packed with cancellous autograft, allograft or

synthetic bone substitutes such as CONDUIT™ TCP.

Note: Blood lamination can reduce the

mechanical stability of the cement, therefore

it is vital to choose a cement which reaches its

working phase early.

Whether mixed by the SMARTMIX™ Vacuum

Mixing Bowl or the SMARTMIX CEMVAC®

Vacuum Mixing System, SMARTSET® GHV Bone

Cement offers convenient handling characteristics

for the knee cementation process.

A thick layer of cement can be placed either on

the bone (Figure 70) or on the implant itself.

Cementing Technique

Figure 69

Figure 70

Page 34: Surgical Technique - Limelight Networkssynthes.vo.llnwd.net/o16/LLNWMB8/INT Mobile/Synthes International... · This surgical technique provides instruction on the ... Slide the tibial

Locking knob

32

Tibial Implantation

Attach the M.B.T. tibial impactor by inserting

the plastic cone into the implant and tighten by

rotating the lock knob clockwise. Carefully insert

the tibial tray avoiding malrotation (Figure 71).

When fully inserted, several mallet blows may be

delivered to the top of the tray inserter. If using a

cemented component remove all extruded cement

using a curette.

Polyethylene Implantation

Remove loose fragments or particulates from the

permanent tibial tray. The appropriate permanent

tibial insert can be inserted.

Femoral Implantation

Hyperflex the femur and sublux the tibia forward.

Attach the slap hammer or universal handle

to the femoral inserter / extractor. Position the

appropriately sized femoral component on the

inserter / extractor by depressing the two triggers

to separate the arms and push the femoral

component against the conforming polyethylene.

Release the triggers so that the arms engage in

the slots on the femoral component and rotate

the handle clockwise to lock (Figure 72). Extend

the knee to approximately 90 degrees for final

impaction. Release the inserter / extractor by

rotating the handle counter-clockwise and push

the two triggers with thumb and index finger.

For final femur impaction use the femoral notch

impactor to seat the femur component. If using a

cemented component clear any extruded cement

using a curette (Figure 73).

Patella Implantation

Any of the LCS 3 peg patellas can now be

implanted if required.

Final Component Implantation

Figure 71

Figure 72

Figure 73

Page 35: Surgical Technique - Limelight Networkssynthes.vo.llnwd.net/o16/LLNWMB8/INT Mobile/Synthes International... · This surgical technique provides instruction on the ... Slide the tibial

33

Note: Before closure it is essential to irrigate

the surgical site to remove any potential

debris.

Release the tourniquet and control bleeding by

electrocautery. Place a closed-wound suction drain

in the suprapatellar pouch and bring out through

the lateral retinaculum.

Re-approximate the fat pad, quadriceps

mechanism, patella tendon and medial

retinaculum with interrupted sutures.

Fully rotate the knee from full extension to full

flexion to confirm patellar tracking and the

integrity of the capsular closing (Figure 74).

Note the final flexion against gravity

for post-operative rehabilitation.

Re-approximate subcutaneous tissue

and close the skin with sutures or staple.

Figure 74

Closure

Page 36: Surgical Technique - Limelight Networkssynthes.vo.llnwd.net/o16/LLNWMB8/INT Mobile/Synthes International... · This surgical technique provides instruction on the ... Slide the tibial

34

The entry point for the intramedullary alignment

rod is a critical starting point for accurate

alignment of the intramedullary alignment system.

In most cases, this point will be centred on the

tibial spine in both medial / lateral and anterior /

posterior aspect. In some cases, it may be slightly

eccentric.

The knee is flexed maximally, the tibial retractor

is inserted over the posterior cruciate ligament

and the tibia is subluxed anteriorly. All soft tissue

is cleared from the intercondylar area. The tibial

spine is resected to the highest level of the least

affected tibial condyle.

Position the correct size fixed bearing or mobile

bearing tray trial on the proximal tibia to aid in

establishing a drill point.

Drill a hole through the tray trial to open the tibia

intramedullary canal with the I.M. 9 mm starter

drill (Figure 75).

The intramedullary rod is passed down through

the medullary canal until the isthmus is firmly

engaged (Figure 76).

Appendix A: Tibial I.m. Jig Alignment

Figure 75

Figure 76

Page 37: Surgical Technique - Limelight Networkssynthes.vo.llnwd.net/o16/LLNWMB8/INT Mobile/Synthes International... · This surgical technique provides instruction on the ... Slide the tibial

Tibial cutting block release button

I.M. rod lock

A/P slide adjustment lock

Distal proximal lock

Slope adjustment

Slope scale

35

Remove the handle and place the I.M. rotation

guide over the I.M. rod to define the correct

rotational tibia axis, referring to the condylar axis,

medial 1/3 of the tibia tubercle and the centre

of the ankle (Figure 77). The angle can also be

checked relative to the posterior condylar axis by

moving the slider forward and rotating it until it

is aligned with the posterior condyles. The marks

on the rotation guide are in 2 degree increments

and give an indication of the angle between the

posterior condylar axis and the chosen rotation.

The rotation can then be marked through the

slot on the rotation guide. The rotation guide

can then be removed. After the correct rotation

has been marked, slide the I.M. tibial jig over the

I.M. rod and rotate the I.M. jig until the rotation

line on the jig lines up with the line previously

marked using the rotation guide. Assemble the

appropriate 7 degree, left / right or symmetrical

cutting block to the I.M. tibial jig in line with the

marked rotation (Figure 78). Additional posterior

slope can be added through the slope adjustment

knob.

Note: The number in the window indicates

the amount of ADDITIONAL SLOPE that has

been added.

Appendix A: Tibial I.m. Jig Alignment

Figure 77

Figure 78

Page 38: Surgical Technique - Limelight Networkssynthes.vo.llnwd.net/o16/LLNWMB8/INT Mobile/Synthes International... · This surgical technique provides instruction on the ... Slide the tibial

36

Slide the appropriate fixed or adjustable stylus in

the tibial cutting block slot. When measuring from

the less damaged side of the tibia plateau set the

stylus to 8 mm or 10 mm. If the stylus is placed

on the more damaged side of the tibia plateau,

set the stylus to 0 mm or 2 mm (Figure 79).

Slide the total construct as close as possible

towards the proximal tibia and lock this position.

Adjust the correct degree of slope by rotating the

slope adjustment screw.

The correct block height can be obtained by

unlocking the distal proximal lock and lowering

the bottom half of the block until the stylus is

resting on the desired part of the tibia. Lock the

device, by turning the distal proximal locking

screw, when the correct position has been

reached.

After the height has been set, insert two pins

through the 0 mm set of holes in the block

(the stylus may need to be removed for access).

The block can be securely fixed with one extra

convergent pin.

+2 and –2 mm pinholes are available on the

cutting blocks to further adjust the resection level

where needed.

Check the position of the resection block with an

external alignment guide before making any cut.

Unlock the intramedullary alignment device from

the cutting block and remove the I.M. rod.

Appendix A: Tibial I.m. Jig Alignment

Figure 79

Page 39: Surgical Technique - Limelight Networkssynthes.vo.llnwd.net/o16/LLNWMB8/INT Mobile/Synthes International... · This surgical technique provides instruction on the ... Slide the tibial

A/P adjustment lock

Distal proximal lock

37

Assemble the appropriate 7 degree, left / right

or symmetrical cutting block to the spiked uprod

(Figure 80). Slide the spiked uprod into the ankle

clamp assembly.

Place the knee in 90 degrees of flexion with the

tibia translated anteriorly and stabilised. Place the

ankle clamp proximal to the malleoli and insert

the larger of the two proximal spikes in the centre

of the tibial eminence to stabilise the EM

alignment device. Loosen the A/P adjustment lock

and position the cutting block roughly against

the proximal tibia and lock the knob. Position the

cutting block at a rough level of resection and

tighten the distal proximal lock (Figure 81).

Varus / Valgus

Establish rotational alignment by aligning the tibial

jig ankle clamp parallel to the transmalleolar axis.

The midline of the tibia is approximately 3 mm

medial to the transaxial midline.

Translate the lower assembly medially (usually to

the second vertical mark) by pushing the varus /

valgus adjustment wings.

There are vertical scribe marks for reference

aligning to the middle of the talus.

Appendix B: Spiked Uprod

Figure 80

Figure 81

Page 40: Surgical Technique - Limelight Networkssynthes.vo.llnwd.net/o16/LLNWMB8/INT Mobile/Synthes International... · This surgical technique provides instruction on the ... Slide the tibial

Slope overide button

Slope adjustment lock

38

Slope

The spiked uprod and ankle clamp are designed to

prevent an adverse anterior slope. On an average

size tibia this guide will give approximately a 7

degree tibial slope when the slope adjustment

is translated posteirorly until it hits the stop. In

some cases a slight amount of slope will remain

(1-2 degrees).

The angle of the tibial slope can be increased to

greater than 7 degrees should the patient have a

greater natural slope (Figure 82). First unlock the

slide locking position and then translate the tibial

slope adjuster anteriorly until the desired angle is

reached.

As each patient’s anatomy varies, the spiked

uprod can be used for both smaller and larger

patients. The length of the tibia influences the

amount of slope when translating the adapter

anteriorly. The 7 degree default position can be

overridden by pressing the slope override button

and moving the slope adjustment closer to the

ankle (Figure 82).

On the spiked uprod 5, 6 and 7 zones are present,

which correspond to the length of the tibia. These

markings can by used to fine tune the amount of

slope.

When the spiked uprod shows a zone marked

"7", this indicates that when the lower assembly

is translated 7 mm anterior, it will give an

additional 1 degree of posterior slope (Figure 83).

Appendix B: Spiked Uprod

Figure 82

Figure 83

Page 41: Surgical Technique - Limelight Networkssynthes.vo.llnwd.net/o16/LLNWMB8/INT Mobile/Synthes International... · This surgical technique provides instruction on the ... Slide the tibial

Non-slotted stylus foot

Press release trigger to disengage the tibial

cutting block

39

Tibial Resection

After the height has been set, tighten

the distal proximal lock and pin the block through

the 0 mm set of holes (the stylus may need to be

removed for access).

+2 and -2 mm pinholes are available on the

resection blocks to further adjust the resection

level where needed. The block can be securely

fixed with one extra convergent pin (Figure 84).

Appendix B: Spiked Uprod

Figure 84

Figure 85

Spiked Uprod Removal

1. Loosen the distal proximal lock.

2. Connect the sla p-hammer to the top

of the spiked uprod and disengage

the spikes from the proximal tibia.

3. Press the cutting block release button

to disengage from the cutting block.

Remove the tibial jig and perform the appropriate

resection (Figure 85).

Page 42: Surgical Technique - Limelight Networkssynthes.vo.llnwd.net/o16/LLNWMB8/INT Mobile/Synthes International... · This surgical technique provides instruction on the ... Slide the tibial

PS Block

40

Femoral Sulcus and PS Box Cut

Select the appropriate size of femoral PS notch

guide and position on the resected anterior and

distal surfaces of the femur (Figure 86).

Ensure the notch guide sits flush on the resected

femur.

The M/L edges on each side of the block

correspond exactly to the M/L dimension of the

final implant (Figure 86).

Note: This M/L position should be checked

before final positional cuts and lug holes are

made.

Make final resections using a 1.47 mm saw blade

in the following order:

Notch cuts (Figures 87 and 88)

Sulcus cut (Figure 89)

Peg (Lug) holes (Figure 90).

Note: Take care to ensure the saw blade

remains within the box cut window and does

not stray into the condyles.

Note: After femoral preparation and before

implantation, it is essential to irrigate the

surgical site to remove any potential debris.

Appendix C: PS Final Femoral Preparation

Figure 86

Figure 87 Figure 88

Figure 89 Figure 90

Page 43: Surgical Technique - Limelight Networkssynthes.vo.llnwd.net/o16/LLNWMB8/INT Mobile/Synthes International... · This surgical technique provides instruction on the ... Slide the tibial

5

9

1

4

8

10

2

8

3

56

8

2

3

10

9

7

4

2

1

41

ordering Information

LCS HP Tibial Resection Tray 9505-02-880

or

1 9505-02-078 HP Pin Holder

2 9505-02-070 HP Pin Impactor/Extractor

3 9505-02-071 HP Power Pin Driver

4 2589-19-050 LCS HP Visualization Wing

5 2178-56-045 HP IM Drill 9 mm

8 9505-01-202 HP IM Tibia Rotation Guide

9 9505-01-203 HP IM Tibia Jig

10 9505-02-072 HP Threaded Bone Pins

10 9505-02-073 HP Threaded Bone Pins Collared

10 9505-02-088 HP Threaded Pins

10 9505-02-089 HP Threaded Headed Pins

1 9505-01-228 HP EM Tibial Jig Uprod

2 9505-01-229 HP EM Tibial Jig Ankle Clamp

3 9505-01-230 HP EM Tibial Jig Spiked Uprod

4 9505-01-208 HP Adjustable Tibial Stylus

5 9505-01-206 LCS HP 7 degree Symmetrical Block

6 9505-01-226 LCS HP 7 degree LM/RL Cut Block

7 9505-01-227 LCS HP 7 degree RM/LL Cut Block

8 9505-01-298 HP Recut Tibial Block 2 degree VV

9 9505-01-215 LCS HP Slot Stylus 8/10 mm Fixed

10 9505-01-217 LCS HP NonSlot Stylus 8/10 mm Fixed

9505-01-162 LCS HP Slot Stylus 0/2 mm Fixed

9505-01-163 LCS HP NonSlot Stylus 0/2 mm Fixed

Page 44: Surgical Technique - Limelight Networkssynthes.vo.llnwd.net/o16/LLNWMB8/INT Mobile/Synthes International... · This surgical technique provides instruction on the ... Slide the tibial

13

1

3

2

4

15

6 5 714

8 9 10 11 12

42 43

LCS HP Femoral Preparation Tray 9505-02-881

ordering Information

1 2178-55-025 LCS HP Distal Long IM Rod

2 9505-01-042 LCS HP Anterior Femoral Stylus

3 9505-01-064 LCS HP Distal Alignment Guide

4 9505-01-065 LCS HP Distal Outrigger

5 9505-01-118 LCS HP Distal Cut Block

6 9505-01-067 LCS HP Distal Block 1.25 mm

7 9505-01-068 LCS HP Distal Block 2 Degree VV

8 9505-01-072 LCS HP A/P Block Medium

9 9505-01-073 LCS HP A/P Block Standard

10 9505-01-074 LCS HP A/P Block Standard+

11 9505-01-075 LCS HP A/P Block Large

12 9505-01-076 LCS HP A/P Block Large+

13 9505-01-119 LCS HP A/P Lock Handle

14 9920-11 HP IM Rod Handle

15 9505-01-055 LCS HP EM Alignment Tower

Page 45: Surgical Technique - Limelight Networkssynthes.vo.llnwd.net/o16/LLNWMB8/INT Mobile/Synthes International... · This surgical technique provides instruction on the ... Slide the tibial

2 4

1

6

35

2

5

6

1

4 - Im Plates

3 - Femoral/Tibial Shims

43

ordering Information

LCS HP Balancing & Sizing Tray 9505-02-882

1 2287-69-000 LCS HP Femoral Sizing Caliper

2 2178-56-020 LCS HP Femoral Template Large/Large+

3 2178-56-010 LCS HP Femoral Template Medium

4 2178-56-015 LCS HP Femoral Template Standard/Std+

5 9505-01-041 LCS HP IM Hole Locator

6 9505-03-022 LCS HP IM Plate 0 Degree

1 2287-21-000 LCS HP Alignment Rod

2 9505-01-063 LCS HP Femoral Position Medium/Large+

3 2178-43-023 LCS HP Femoral Shim Medium/Std+

3 2178-43-026 LCS HP Femoral Shim Large/Large+

3 2178-43-050 LCS HP Tibial Shim Medium/Large+ 12.5

3 2178-43-052 LCS HP Tibial Shim Medium/Large+ 15.0

3 2178-43-054 LCS HP Tibial Shim Medium/Large+ 17.5

3 2178-43-056 LCS HP Tibial Shim Medium/Large+ 20.0

4 9505-03-010 LCS HP IM Plate 3 Degree Left

4 9505-03-011 LCS HP IM Plate 3 Degree Right

4 9505-03-012 LCS HP IM Plate 4 Degree Left

4 9505-03-013 LCS HP IM Plate 4 Degree Right

4 9505-03-014 LCS HP IM Plate 5 Degree Left

4 9505-03-015 LCS HP IM Plate 5 Degree Right

4 9505-03-016 LCS HP IM Plate 6 Degree Left

4 9505-03-017 LCS HP IM Plate 6 Degree Right

4 9505-03-018 LCS HP IM Plate 7 Degree Left

4 9505-03-019 LCS HP IM Plate 7 Degree Right

4 9505-03-020 LCS HP IM Plate 8 Degree Left

4 9505-03-021 LCS HP IM Plate 8 Degree Right

5 2178-43-066 LCS HP Min Spacer Block Medium/Large+

6 2178-43-015 LCS HP Spacer Block Medium/Large+

Page 46: Surgical Technique - Limelight Networkssynthes.vo.llnwd.net/o16/LLNWMB8/INT Mobile/Synthes International... · This surgical technique provides instruction on the ... Slide the tibial

7 832

61

10954

44 45

LCS HP Femoral Finishing Tray 9505-02-883

ordering Information

1 2287-57-075 LCS HP Femoral Finishing Guide Medium with Feet

2 2287-53-075 LCS HP Femoral Finishing Guide Standard with Feet

3 2287-54-075 LCS HP Femoral Finishing Guide Standard+ with Feet

4 2287-55-075 LCS HP Femoral Finishing Guide Large with Feet

5 2287-56-075 LCS HP Femoral Finishing Guide Large+ with Feet

6 9505-01-183 LCS HP Femoral Finishing Guide Medium without Feet

7 9505-01-184 LCS HP Femoral Finishing Guide Standard without Feet

8 9505-01-185 LCS HP Femoral Finishing Guide Standard+ without Feet

9 9505-01-186 LCS HP Femoral Finishing Guide Large without Feet

10 9505-01-187 LCS HP Femoral Finishing Guide Large+ without Feet

Page 47: Surgical Technique - Limelight Networkssynthes.vo.llnwd.net/o16/LLNWMB8/INT Mobile/Synthes International... · This surgical technique provides instruction on the ... Slide the tibial

12

13 14 15 16 17 18 192827 29

26

20 21 22

10

23 24 25

987654321

11

2

1

45

LCS HP Patella Preparation Tray 9505-02-884

ordering Information

1 2287-24-050 LCS 3 Peg Patella Medial Temp Size Small

2 2287-25-050 LCS 3 Peg Patella Medial Temp Size Small+

3 2287-30-050 LCS 3-Peg Patella Medial Temp Size Medium

4 2287-26-050 LCS 3 Peg Patella Medial Temp Size Standard

5 2287-27-050 LCS 3 Peg Patella Medial Temp Size Standard+

6 2287-28-050 LCS 3 Peg Patella Medial Temp Size Large

7 2287-29-050 LCS 3 Peg Patella Medial Temp Size Large+

8 2287-72-000 LCS Patella Head Small/Small+

9 2287-73-000 LCS Patella Head Medium/Large+ Medial

10 2287-48-000 LCS Femoral Peg Drill 1/4 w/Stop

11 2490-81-000 Patella Caliper

12 2287-71-000 Modular Patella Face Plate

13 2289-04-001 LCS 3 Peg Metal Backed Patella Trial Small

14 2289-04-002 LCS 3 Peg Metal Backed Patella Trial Small+

15 2289-04-014 LCS 3 Peg Metal Backed Patella Trial Medium

16 2289-04-003 LCS 3 Peg Metal Backed Patella Trial Standard

17 2289-04-004 LCS 3 Peg Metal Backed Patella Trial Standard+

18 2289-04-005 LCS 3 Peg Metal Backed Patella Trial Large

19 2289-04-006 LCS 3 Peg Metal Backed Patella Trial Large+

20 2289-04-007 LCS 3 Peg All Poly Patella Trial Small

21 2289-04-008 LCS 3 Peg All Poly Patella Trial Small+

22 2289-04-013 LCS 3 Peg All Poly Patella Trial Medium

23 2289-04-009 LCS 3 Peg All Poly Patella Trial Standard

24 2289-04-010 LCS 3 Peg All Poly Patella Trial Standard+

25 2289-04-011 LCS 3 Peg All Poly Patella Trial Large

26 2289-04-012 LCS 3 Peg All Poly Patella Trial Large+

27 9505-01-241 LCS HP Patella Remenant

28 9505-01-244 LCS HP Patella Resection Stylus Small - Med

29 9505-01-245 LCS HP Patella Resection Stylus Standard - Lg

NP 9505-01-246 LCS HP Patella Resection Stylus Large+

1 2287-70-000 Modular Patella Clamp

2 9505-01-122 LCS HP Patella Resection Guide

NP 9505-01-923 HP Patella Wafer Small

NP 9505-01-623 HP Patella Wafer Large

NP 2500-02-000 LCS Complete Patella Resection

NP 2500-04-000 LCS Complete Patella Reference Arm

Page 48: Surgical Technique - Limelight Networkssynthes.vo.llnwd.net/o16/LLNWMB8/INT Mobile/Synthes International... · This surgical technique provides instruction on the ... Slide the tibial

medium

10

12.5

15

17.5

20

Standard Standard+ Large Large+

medium

Right

Left

Standard Standard+ Large Large+

1

46 47

LCS HP RP Trials Tray 9505-02-885

ordering Information

1 2294-05-310 LCS Complete RP Insert Trial Medium 10 mm

2 2294-05-312 LCS Complete RP Insert Trial Medium 12.5 mm

3 2294-05-315 LCS Complete RP Insert Trial Medium 15 mm

4 2294-05-317 LCS Complete RP Insert Trial Medium 17.5 mm

5 2294-05-320 LCS Complete RP Insert Trial Medium 20 mm

6 2294-05-410 LCS Complete RP Insert Trial Standard 10 mm

7 2294-05-412 LCS Complete RP Insert Trial Standard 12.5 mm

8 2294-05-415 LCS Complete RP Insert Trial Standard 15 mm

9 2294-05-417 LCS Complete RP Insert Trial Standard 17.5 mm

10 2294-05-420 LCS Complete RP Insert Trial Standard 20 mm

11 2294-05-510 LCS Complete RP Insert Trial Standard+ 10 mm

12 2294-05-512 LCS Complete RP Insert Trial Standard+ 12.5 mm

13 2294-05-515 LCS Complete RP Insert Trial Standard+ 15 mm

14 2294-05-517 LCS Complete RP Insert Trial Standard+ 17.5 mm

15 2294-05-520 LCS Complete RP Insert Trial Standard+ 20 mm

16 2294-05-610 LCS Complete RP Insert Trial Large 10 mm

17 2294-05-612 LCS Complete RP Insert Trial Large 12.5 mm

18 2294-05-615 LCS Complete RP Insert Trial Large 15 mm

19 2294-05-617 LCS Complete RP Insert Trial Large 17.5 mm

20 2294-05-620 LCS Complete RP Insert Trial Large 20 mm

21 2294-05-710 LCS Complete RP Insert Trial Large+ 10 mm

22 2294-05-712 LCS Complete RP Insert Trial Large+ 12.5 mm

23 2294-05-715 LCS Complete RP Insert Trial Large+ 15 mm

24 2294-05-717 LCS Complete RP Insert Trial Large+ 17.5 mm

25 2294-05-720 LCS Complete RP Insert Trial Large+ 20 mm

1 2287-48-000 HP Femoral Lug Drill

2 2294-01-030 LCS Complete Femoral Trial Right Medium

3 2294-01-040 LCS Complete Femoral Trial Right Standard

4 2294-01-050 LCS Complete Femoral Trial Right Standard+

5 2294-01-060 LCS Complete Femoral Trial Right Large

6 2294-01-070 LCS Complete Femoral Trial Right Large+

7 2294-02-030 LCS Complete Femoral Trial Left Medium

8 2294-02-040 LCS Complete Femoral Trial Left Standard

9 2294-02-050 LCS Complete Femoral Trial Left Standard+

10 2294-02-060 LCS Complete Femoral Trial Left Large

11 2294-02-070 LCS Complete Femoral Trial Left Large+

Page 49: Surgical Technique - Limelight Networkssynthes.vo.llnwd.net/o16/LLNWMB8/INT Mobile/Synthes International... · This surgical technique provides instruction on the ... Slide the tibial

1

medium

Right

Left

Standard Standard+ Large Large+

5 4 3 2 1

47

LCS HP RPS Femoral Trials Tray 9505-02-886

ordering Information

1 2287-48-000 HP Femoral Lug Drill

2 2294-11-030 LCS Complete RPS Flex Femoral Trial Right Medium

3 2294-11-040 LCS Complete RPS Flex Femoral Trial Right Standard

4 2294-11-050 LCS Complete RPS Flex Femoral Trial Right Standard+

5 2294-11-060 LCS Complete RPS Flex Femoral Trial Right Large

6 2294-11-070 LCS Complete RPS Flex Femoral Trial Right Large+

7 2294-12-030 LCS Complete RPS Flex Femoral Trial Left Medium

8 2294-12-040 LCS Complete RPS Flex Femoral Trial Left Standard

9 2294-12-050 LCS Complete RPS Flex Femoral Trial Left Standard+

10 2294-12-060 LCS Complete RPS Flex Femoral Trial Left Large

11 2294-12-070 LCS Complete RPS Flex Femoral Trial Left Large+

1 2178-57-030 LCS HP RPS Flex Notch Guide Medium

2 2178-57-040 LCS HP RPS Flex Notch Guide Standard

3 2178-57-050 LCS HP RPS Flex Notch Guide Standard+

4 2178-57-060 LCS HP RPS Flex Notch Guide Large

5 2178-57-070 LCS HP RPS Flex Notch Guide Large+

Page 50: Surgical Technique - Limelight Networkssynthes.vo.llnwd.net/o16/LLNWMB8/INT Mobile/Synthes International... · This surgical technique provides instruction on the ... Slide the tibial

48 49

LCS HP RPS Insert Trials Tray 9505-02-888

ordering Information

1 2294-16-310 LCS Complete RPS Insert Trial Medium 10 mm

2 2294-16-312 LCS Complete RPS Insert Trial Medium 12.5 mm

3 2294-16-315 LCS Complete RPS Insert Trial Medium 15 mm

4 2294-16-317 LCS Complete RPS Insert Trial Medium 17.5 mm

5 2294-16-320 LCS Complete RPS Insert Trial Medium 20 mm

6 2294-16-410 LCS Complete RPS Insert Trial Standard 10 mm

7 2294-16-412 LCS Complete RPS Insert Trial Standard 12.5 mm

8 2294-16-415 LCS Complete RPS Insert Trial Standard 15 mm

9 2294-16-417 LCS Complete RPS Insert Trial Standard 17.5 mm

10 2294-16-420 LCS Complete RPS Insert Trial Standard 20 mm

11 2294-16-510 LCS Complete RPS Insert Trial Standard+ 10 mm

12 2294-16-512 LCS Complete RPS Insert Trial Standard+ 12.5 mm

13 2294-16-515 LCS Complete RPS Insert Trial Standard+ 15 mm

14 2294-16-517 LCS Complete RPS Insert Trial Standard+ 17.5 mm

15 2294-16-520 LCS Complete RPS Insert Trial Standard+ 20 mm

16 2294-16-610 LCS Complete RPS Insert Trial Large 10 mm

17 2294-16-612 LCS Complete RPS Insert Trial Large 12.5 mm

18 2294-16-615 LCS Complete RPS Insert Trial Large 15 mm

19 2294-16-617 LCS Complete RPS Insert Trial Large 17.5 mm

20 2294-16-620 LCS Complete RPS Insert Trial Large 20 mm

21 2294-16-710 LCS Complete RPS Insert Trial Large+ 10 mm

22 2294-16-712 LCS Complete RPS Insert Trial Large+ 12.5 mm

23 2294-16-715 LCS Complete RPS Insert Trial Large+ 15 mm

24 2294-16-717 LCS Complete RPS Insert Trial Large+ 17.5 mm

25 2294-16-720 LCS Complete RPS Insert Trial Large+ 20 mm

medium

10

12.5

15

17.5

20

Standard Standard+ Large Large+

Page 51: Surgical Technique - Limelight Networkssynthes.vo.llnwd.net/o16/LLNWMB8/INT Mobile/Synthes International... · This surgical technique provides instruction on the ... Slide the tibial

5

3

1

2

4

12 13 14 15

6

7

8 9 10 11

49

LCS HP Small/Small+ Tray 1 9505-02-890

ordering Information

1 2178-56-005 LCS HP Femoral Template Small/Sm+

2 9505-02-000 HP MBT Tray Size 1

3 9505-02-001 HP MBT Tray Size 1.5

4 9505-01-070 LCS PW A/P Block Small

4 9505-01-071 LCS PW A/P Block Small+

5 9505-02-016 HP MBT Cemented Punch Size 1-1.5

5 9505-02-010 HP MBT Cemented Keel Punch Size 1-1.5

5 9505-02-013 HP MBT Noncemented Keel Punch Size 1-1.5

5 9505-02-019 HP MBT Noncemented Punch Size 1-1.5

5 9505-02-030 HP Duofix Tibial Bullet Size 1-1.5

6 2178-57-010 LCS HP RPS Flex Notch Guide Small

7 2178-57-020 LCS HP RPS Flex Notch Guide Small+

8 2294-01-010 LCS Complete Femoral Trial Right Small

8 2294-02-010 LCS Complete Femoral Trial Left Small

9 2294-01-020 LCS Complete Femoral Trial Right Small+

9 2294-02-020 LCS Complete Femoral Trial Left Small+

10 2294-11-010 LCS Complete PS Femoral Trial Right Small

10 2294-12-010 LCS Complete PS Femoral Trial Left Small

11 2294-11-020 LCS Complete PS Femoral Trial Right Small+

11 2294-12-020 LCS Complete PS Femoral Trial Left Small+

12 2287-51-075 LCS HP Femoral Finish Guide with Feet Small

13 2287-52-075 LCS HP Femoral Finish Guide with Feet Small+

14 9505-01-181 LCS HP Femoral Block without Feet Small

15 9505-01-182 LCS HP Femoral Block without Feet Small+

Page 52: Surgical Technique - Limelight Networkssynthes.vo.llnwd.net/o16/LLNWMB8/INT Mobile/Synthes International... · This surgical technique provides instruction on the ... Slide the tibial

50 51

ordering Information

LCS HP Small/Small+ Tray 2 9505-02-891

1 2294-16-110 LCS Complete RPS Insert Trial Small 10 mm

1 2294-16-112 LCS Complete RPS Insert Trial Small 12.5 mm

1 2294-16-115 LCS Complete RPS Insert Trial Small 15 mm

1 2294-16-117 LCS Complete RPS Insert Trial Small 17.5 mm

1 2294-16-120 LCS Complete RPS Insert Trial Small 20 mm

2 2294-16-210 LCS Complete RPS Insert Trial Small+ 10 mm

2 2294-16-212 LCS Complete RPS Insert Trial Small+ 12.5 mm

2 2294-16-215 LCS Complete RPS Insert Trial Small+ 15 mm

2 2294-16-217 LCS Complete RPS Insert Trial Small+ 17.5 mm

2 2294-16-220 LCS Complete RPS Insert Trial Small+ 20 mm

3 2178-43-046 LCS HP 4 mm Spacer Block Small/Sm+

4 9505-01-062 LCS HP Femoral Position Small/Sm+

5 2178-43-010 LCS HP 10 mm Spacer Block Small/Sm+

6 2178-43-030 LCS HP Tibial Shim Small/Sm+ 12.5 mm

6 2178-43-032 LCS HP Tibial Shim Small/Sm+ 15.0 mm

6 2178-43-034 LCS HP Tibial Shim Small/Sm+ 17.5 mm

6 2178-43-036 LCS HP Tibial Shim Small/Sm+ 20.0 mm

7 2178-43-020 LCS HP Femoral Shim Small/Sm+

8 2294-05-110 LCS Complete RP Insert Trial Small 10 mm

8 2294-05-112 LCS Complete RP Insert Trial Small 12.5 mm

8 2294-05-115 LCS Complete RP Insert Trial Small 15 mm

8 2294-05-117 LCS Complete RP Insert Trial Small 17.5 mm

8 2294-05-120 LCS Complete RP Insert Trial Small 20 mm

9 2294-05-210 LCS Complete RP Insert Trial Small+ 10 mm

9 2294-05-212 LCS Complete RP Insert Trial Small+ 12.5 mm

9 2294-05-215 LCS Complete RP Insert Trial Small+ 15 mm

9 2294-05-217 LCS Complete RP Insert Trial Small+ 17.5 mm

9 2294-05-220 LCS Complete RP Insert Trial Small+ 20 mm

7

5 8 92

6

1

10 10

12.5 12.5

15 15

17.5 17.5

20 20

4

3

Page 53: Surgical Technique - Limelight Networkssynthes.vo.llnwd.net/o16/LLNWMB8/INT Mobile/Synthes International... · This surgical technique provides instruction on the ... Slide the tibial

5

26

3

7

1

8

4

51

ordering Information

LCS HP Insertion Tray 9505-02-897

1 9505-01219 LCS HP Femoral Notch Impactor

2 9505-01171 HP Femoral Ins/Ext

3 2267-77000 HP Femoral Impactor

4 9505-01308 HP Slap Hammer

5 9505-01305 HP Universal Handle

6 9653-83 RP Tibial Tray Impactor

7 9505-01-558 MBT Tibial Impactor

8 2588-87-000 Femoral Extractor

Page 54: Surgical Technique - Limelight Networkssynthes.vo.llnwd.net/o16/LLNWMB8/INT Mobile/Synthes International... · This surgical technique provides instruction on the ... Slide the tibial

52

ordering Information

LCS HP MBT Prepartation Tray 9505-02-898

1 9505-02-025 HP MBT Cemented Central Drill

2 9505-02-017 HP MBT Cemented Punch Size 2-3

3 9505-02-018 HP MBT Cemented Punch Size 4-7

4 9505-02-011 HP MBT Cemented Keel Punch Size 2-3

5 9505-02-012 HP MBT Cemented Keel Punch Size 4-7

6 9505-02-029 HP MBT Drill Stop

7 9505-02-027 HP MBT Drill Tower

8 9505-02-024 HP MBT Keel Punch Impact

9 9505-02-028 HP MBT Modular Alignment Handle

10 9505-02-026 HP MBT Noncemented Central Drill

11 9505-02-014 HP MBT Noncemented Keel Punch Size 2-3

12 9505-02-015 HP MBT Noncemented Keel Punch Size 4-7

13 9505-02-020 HP MBT Noncemented Punch Size 2-3

14 9505-02-021 HP MBT Noncemented Punch Size 4-7

15 9505-02-002 HP MBT Tray Size 2

16 9505-02-003 HP MBT Tray Size 2.5

17 9505-02-004 HP MBT Tray Size 3

18 9505-02-005 HP MBT Tray Size 3.5

19 9505-02-006 HP MBT Tray Size 4

20 9505-02-007 HP MBT Tray Size 5

21 9505-02-008 HP MBT Tray Size 6

22 2178-30-123 HP MBT Tray Trial Fixation Pins

23 9505-02-030 HP Duofix Tibial Bullet Size 1-1.5

24 9505-02-031 HP Duofix Tibial Bullet Size 2-3.5

25 9505-02-032 HP Duofix Tibial Bullet Size 4-7

26 9003-35-000 HP Duofix Tibial Peg Drill

27 9505-02-034 HP Duofix Tibial Reamer

28 9505-02-022 HP MBT Evaluation Bullet Size 1-3

29 9505-02-023 HP MBT Evaluation Bullet Size 4-7

30 9505-02-099 HP MBT Evaluation Bullet without Spikes Size 1-3

31 9505-02-098 HP MBT Evaluation Bullet without Spikes Size 4-7

32 2178-30-121 MBT RP Plateau Trial Post (optional)

8

5

4

21

3

32

27

24

25

26

9

23

mBT Trays

Cemented Inlay Duofix Inlay

7

22

62931

2830

12

13

14

10

11

Non Cemented Inlay

Page 55: Surgical Technique - Limelight Networkssynthes.vo.llnwd.net/o16/LLNWMB8/INT Mobile/Synthes International... · This surgical technique provides instruction on the ... Slide the tibial
Page 56: Surgical Technique - Limelight Networkssynthes.vo.llnwd.net/o16/LLNWMB8/INT Mobile/Synthes International... · This surgical technique provides instruction on the ... Slide the tibial

0086

DePuy International LtdSt Anthony’s RoadLeeds LS11 8DTEnglandTel: +44 (0)113 387 7800Fax: +44 (0)113 387 7890

DePuy Orthopaedics, Inc. 700 Orthopaedic DriveWarsaw, IN 46581-0988USATel: +1 (800) 366 8143Fax: +1 (574) 267 7196

This publication is not intended for distribution in the USA.

DePuy Orthopaedics EMEA is a trading division of DePuy International Limited.Registered Office: St. Anthony’s Road, Leeds LS11 8DT, EnglandRegistered in England No. 3319712

www.depuy.com

©DePuy International Ltd. and DePuy Orthopaedics, Inc. 2012. All rights reserved.

CA#DPEM/ORT/0712/0135

9075-15-000 version 4 Issued: 12/12