tendoachilles rupture and its management
DESCRIPTION
Achilles tendon is the strongest tendon of body. There are many causes of its rupture. It can be acute or chronic rupture. Management of chronic rupture by semitendinosus tendon is mentioned here.TRANSCRIPT
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TENDOACHILLES RUPTURE: MANAGEMENT
Dr Rohan VaktaM.S.OrthoAASH Arthroscopy Center Ahmedabad,India
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Largest tendon in the body
Origin from gastrocnemius and soleus muscles
Insertion on calcanealtuberosity
Anatomy
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Remarkable response to stressExercise induces increase in tendon
diameterInactivity causes rapid atrophy
Age-related decreases in cell density& collagen
Older athletes have higher injury susceptibility
Physiology
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Gastrocnemius-soleus-Achilles complexActs on 3 joints
Flexion of kneePlantarflexion of
tibiotalar jointSupination of subtalar jt.
It can transmit up to
10 times body weight through
tendon when running
Biomechanics
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RISK FACTORS
Recreational athlete : Basketball , Volleyball , Rugby , Soccer
[There may be a history of a recent increase in physical activity/training volume]
Age (30‐50 years)
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Obesity Diabetes Mellitus Previous tendon injury
RISK FACTORS (CONT.)
Previous Steroid injections or fluoroquinolone use
Inustrial Accidents
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Classification of TA Rupture
Acute-Athletics injuries
Neglected-Degenerative Injuries
CloseOpen
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STAGES OF DEGENERATIVE TENDON INJURY
AASH Arthroscopy Center
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Repetitive microtraumaRelatively hypovascular
area.Reparative process
inadequateMost ruptures occur in
“Watershed area” Antecedent
tendinitis/tendinosis in 15%
PATHOPHYSIOLOGY OF DEGENERATIVE TENDON INJURY
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ATHLETIC INJURY
Indirect : Eccentric force applied to a dorsiflexed foot ; Sudden unexpected dorsiflexion of ankle
Direct : May occur as the result of direct trauma
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Feels like being kicked in the legFeeling of sudden Snap
in the lower calfAcute sever painWalk with a limp, unable to run,
climb stairs, or stand on their toesLoss of plantar flexion power
Acute
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DEGENERATED TENDON
• Swelling , nodularity due to thickening and calcification• crepitation along the tendon sheath
Partial tear :- fusiform swelling
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Physical Examination
Normal TA
Ruptured Tendon not Visible/Palpable
Prone patient with feet over edge of bed
Palpation of entire length of muscle-tendon unit during active and passive ROM
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Thompson test: with the patient prone, squeezing the calf of the extended leg may demonstrate no passive plantar flexion of the foot if its Achilles tendon is ruptured
Clinical Tests
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“Hyperdorsiflexion” sign –
With the patient prone and knees flexed to 90º,maximal passive dorsiflexion of both feet may reveal excessive dorsiflexion of the affected leg
O’Brien needle test:
insert a needle 10 cm proximal to the calcaneal insertion of the tendon. With passive dorsiflexion of the foot, the hub of the needle will tilt rostrally when the Achilles tendon is intact
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X-RAY-
Avulsion fracture at the insertion , with marked separation of fragments.
Imaging
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Kager’s Fat pad
FH
L TA
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Inexpensivefast, reproducable, dynamic examination possibleBest to measure thickness and
gapGood screening test for
complete rupture
Ultrasound
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ACUTE RUPTURE
CHRONIC RUPTURE
HEALTHY TENDON
• Expensive, not dynamic• Better at detecting partial ruptures • Staging of degenerative changes,
(monitor healing)
MRI
MRI
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Management Goals
Optimize gastro-soleous strength and function
Restore musculotendinous length and tension.
Avoid ankle stiffness
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Cast in Plantarflexion CAM Walker or cast with plantarflexion at 2 wks
2 wks
Allow progressive weight-bearing in removable cast
Remove cast and walk with shoe lift. Start with 2cm x 1 month, then 1cm x1 month then D/C
4 weeks
Start physio for ROM exercises
When WBAT and foot is plantigrade
Start a strengthening program
2- 4 weeks
Controversial
40% Re-Rupture rate
Conservative Management
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Preserve anterior paratenon bl. supplyBeware of sural nerveDebride and approximate tendon endsUse 2-4 stranded locked suture techniqueClose paratenon separately
Principles:
Surgical management
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Operative Treatment
A: Defects of 1 cm or lessDirect end to end repair without augmentation
Bunnell Suture
Modified Kessler
Many techniques available
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B: Defects 1 - 2 cmMuscle mobilization ± augmentation (plantaris)Can gain up to 2 cm with mobilization
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No consensus on best reconstruction techniqueSemi-T tendon transferFlexor hallucis longus (FHL) tendon transfer loss of great toe flexion(Not acceptable in Athletes)Others: FDL , Peroneus BrevisV-Y myotendinous lengthening ± FHL transfer
C: Defects 2 - 5 cm
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CASE OF TENDOACHILLES RUPTURE
• M/28• 3 Months old injury• USG : 25 mm gap , 38
mm proximal to calcaneal tuberosity
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Surgical Technique
Chronic rupture with fibrosed tissue
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Plantaris
5 cm GAP
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Semi-T Harvested
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Semi-T passed through the proximal Musculo-Tendinous junction
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Semi-T passed through Calcaneum
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SemiT fixed to calcaneum using IF Screw
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SemiT and Plantaris are sutured with distal & proximal TA using nonaborbable suture
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Cast in Equinus for 3 Weeks
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F’UP AT 6 WKS & 2 MONTHS
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Defects > 5 cmSemiT Transfer ± V-Y myotendinous lengthening
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PERCUTANEOUS VS. OPEN
Less wound complicationsLim et al.
33 patients 7 infections
Higher re-rupture rateWong et al.
367 repairs 12% re-rupture
Bradley 12% perc vs. 0% open
Greater StrengthCetti
111 patients
General Consensus: Perc
Less wound complicationsBetter cosmesis
General Consensus: Open
Return to preinjury levelDecreased calf atrophyBetter motionLess re-rupture
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OPEN INJURY
• Extensive debridement
• Wound Care
• Plastic Coverage And
• Tendon Transfer
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POST OP COMPLICATIONS
• Deep infection (1%)
• Fistula (3%)
• Skin necrosis (2%),
• Rerupture (2%).
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Neither Patient nor the Surgeon want Second Surgery or
Rerupture
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PREVENTION OF REINJURY
• Good conditoning and proper stretching before running
• Adequate warm‐up!• Adequate rehabilitation
Wearing appropriate and properly fittng shoes during activites also should be stressed to all athletes
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Chronic Achilles tendon ruptureOperative treatment when possible
Acute Achilles tendon rupture Operative treatment for the young athletic higher
demand patient Closed treatment for those patients with limited
functional goals or medical comorbidities
Functional rehabilitation when possible
SUMMARY
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Pateients’ recovery dependslargely on
Their motivation , Focus& their desired postinjury activity
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THANK YOU