anterior cruciate ligament reconstruction mardani kivi m. m.d. presentation designed for nurses...
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Anterior Cruciate Ligament Reconstruction
Mardani Kivi M. M.D .Presentation designed for nurses education
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What is the Anterior Cruciate Ligament (ACL)?
The ACL is one of the 4 main ligaments of the knee that keeps the knee stable.
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How is the ACL injuredUsually injured with a
twisting injury to the knee or a direct blow to the outside of the knee with a contact or noncontact mechanism
Contact injury◦ Example-hit by an
opponentNoncontact injury
◦ Example-skiing
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How is the ACL injured
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How is the ACL injured
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Signs and Symptoms of ACL tear
Acute◦Marked pain and pop◦Significant knee swelling◦Difficulty bearing weight on the
affected kneeChronic
◦The knee feels loose◦Feeling of “buckling”, “giving way”
or instability◦Pain and swelling
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Signs and Symptoms of ACL tear?
May also be dependent on injuries to other knee structures
Ligaments◦ Medial Collateral Ligament
(MCL)◦ Posterior Cruciate Ligament
(PCL)◦ Posterolateral Corner
Meniscus-(cushions in the knee)◦ Medial◦ Lateral ◦ Both
Articular cartilage (gliding cartilage on the ends of bones)
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DiagnosisHistoryPhysical examX-rays usually normal but should
be obtained to ensure that there is no fracture
MRI-excellent for evaluating not only the ACL but also the meniscus, articular cartilage and other knee ligaments
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What is the acute treatment for an ACL tear?
Rest Ice ElevationCompressionProtected Weight
BearingBrace
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Who does need an ACL reconstruction?
Most patientsPatients who perform activities
requiring an intact ACL-most active patients
Patients with associated knee injuries◦Other ligaments, meniscus tear,
gliding cartilage injuryYoung patients with an otherwise
healthy knee◦No injury to meniscus or gliding
cartilage
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ACL dependent activitiesDependent
◦ Cutting sports Basketball, soccer,
football, softball, tennis, cheerleading, skiing etc.
◦ High end aerobics◦ Skateboarding◦ Difficult Hiking◦ Most laboring jobs◦ ANY ACTIVITY WHEN
THE KNEE BUCKLES AFTER THE INJURY
Not Dependent◦ Walking◦ Jogging in a straight
line◦ Desk jobs◦ Riding a bicycle
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What are the risks of not getting your ACL fixed?
Every time patient’s knee buckles he risks injuring other vital structures in his knee◦Meniscus, ligaments, gliding
cartilageWhat happens if the vital
structures are injured?◦Rapidly accelerated arthritis
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Are there any pre-operative requirements for ACL reconstruction?YesYou should have near
normal knee range of motion.
Sometimes patients go to physical therapy pre-operatively to get there motion restored before surgery.
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Graft Choices-Autograft
Autograft (patient’s tissue)◦Bone-Patellar Tendon-Bone
Bone plug from your knee cap, middle 1/3 of your patellar tendon and bone plug from shin bone
Most painful
◦Hamstring autograft 2 hamstring tendons Less painful than bone patellar tendon bone
graft Allows for a very stable knee Graft of choice for patients with open growth
plates
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Graft Choices-AllograftAllograft (cadaver)
◦Least painful◦Smallest incision◦Recommended in patients with
significant injuries to other ligaments of the knee
◦Usually recommended in revision cases
◦Very, very, very small risk of disease transmission from the donor
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K N E E A R T H R O S C O P Y
Hamstring Graft
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K N E E A R T H R O S C O P Y
Hamstring Graft
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K N E E A R T H R O S C O P Y
Arthroscopy
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K N E E A R T H R O S C O P Y
Arthroscopy
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K N E E A R T H R O S C O P Y
Hamstring Graft
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K N E E A R T H R O S C O P Y
Hamstring Graft
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K N E E A R T H R O S C O P Y
Arthroscopy (Drilling)
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K N E E A R T H R O S C O P Y
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Surgery
Examination of your knee while you are asleep
Fix any associated injuries
Torn meniscus Suture repair of meniscus
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Surgery (Meniscus Repair)K N E E A R T H R O S C O P Y
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Surgery
Reconstruction of the ACL by drilling tunnels (holes) in your femur (thigh bone) and tibia (shin bone)
Tunnel (hole) in thigh bone for graft passage
↑
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Surgery (Drilling and Graft Fix)
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SurgeryPassing the graft across the knee and using
surgical devices to hold the graft in place while it heals to the bones
New ACL graft passed thru tunnels
↑
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K N E E A R T H R O S C O P Y
Graft Fixation
Interference ScrewoMetallicoBiodegradable
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K N E E A R T H R O S C O P Y
Graft Fixation
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