ACL Updates - OrthosportsACL Updates. Doron Sher. MBBS MBiomedE FRACS(Orth) Knee, Shoulder and Elbow...
Transcript of ACL Updates - OrthosportsACL Updates. Doron Sher. MBBS MBiomedE FRACS(Orth) Knee, Shoulder and Elbow...
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Dr Doron SherKnee & Shoulder Surgery
ACL Updates
Doron SherMBBS MBiomedE FRACS(Orth)
Knee, Shoulder and Elbow Surgeon
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Dr Doron SherKnee & Shoulder Surgery
What’s New in ACL Reconstruction?
• History• Examination• Investigations• Graft Placement• Graft Choice• Rehabilitation
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Dr Doron SherKnee & Shoulder Surgery
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Routine Imaging• Weight Bearing AP• Lateral• Notch View• Skyline Patella
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MRI
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Sagittal Coronal
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Bone bruising from dislocation
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Segond Fracture
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Dr Doron SherKnee & Shoulder Surgery
Graft Placement – Lots New
• Over the top NO• 1 or 11 O’clock NO• Trans tibial drilling NO• Vertical grafts NO
Tight in extension with negative Lachmann and good KT scores / IKDC scores BUT not
ideal rotational stability
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Graft Anatomy
• Vertical graft does not recreate PL bundle
– PL bundle resists tibial IR near full-knee extension
• “Anatomic” reconstructions better reproduce the PL bundle
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Dr Doron SherKnee & Shoulder Surgery
Graft Placement – why do we need something new?
• 2-8% of pts not happy • Negative Lachmann but ongoing functional
instability• Pivot shift remains positive despite an
excellent operation
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Dr Doron SherKnee & Shoulder Surgery
Using the anatomical footprint makes sense but…
It has lead to higher re-rupture rates in professional soccer players
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Pivot shift after surgery
• Poorer patient-reported outcomes after ACL reconstruction
• Can happen without failure of the ACL
• In some patients an intra-articular reconstruction is not sufficient to completely restore rotational knee stability
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Evolution of tunnel position
Early DB
Open Surgery OTT
Current Single Bundle
Current Double Bundle
1
43
2
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What does the Segond fracture signify?
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Anterolateral Ligament• Originates from the LFC, just anterior to the
popliteus tendon• Inserts on the anterolateral tibial plateau• Tibial insertion posterior to the posterior
border of Gerdy’s tubercle
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Anterolateral Ligament
• The anterolateral ligamentous structures of the knee are under significant load when the lateral tibia is translated anteriorly and could act as a secondary restraint, supplementing the primary role of the ACL in preventing tibial rotation and anterior translation.
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Anterolateral Ligament Injury
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Lateral extra-articular tenodesis
• Goal : to diminish tibial internal rotation and anterior translation of the lateral tibia.
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Lateral Reconstruction
• The longer lever arm = more efficient control of tibial rotation
• Rotational laxity controlled even if intra- articular graft fails
• Decreases stress on intra-articular reconstruction by more than 40%
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Anterolateral Ligament Reconstruction
• Not usually done as a primary procedure
• Indicated in revisions where the operation was done well the first time
Dr Doron SherKnee & Shoulder Surgery
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Contraindication
• The presence of a PL corner injury– The tenodesis may tether the tibia in a PL
subluxed position.
Dr Doron SherKnee & Shoulder Surgery
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Surgical Technique
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Graft Sources
• LARS going out of favour– Was trendy and advertised in the media– Results not as good as promised– High number of revisions– Still not sure if it will destroy the knee
• Based on historical failures (Kennedy LAD etc) I have never done one
Dr Doron SherKnee & Shoulder Surgery
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Graft Sources
• BTB being used more often
• Quads Tendon with bone a good option
• Allograft– Very high failure rate <25 years old
Dr Doron SherKnee & Shoulder Surgery
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Rehabilitation
• FIFA 11• PEP
• Reducing re injury rates from 10% to 1%
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The Programme• Part 1: Running exercises at a slow speed combined
with active stretching and controlled partner contacts
• Part 2: Six set of exercises, focusing on core and legs strength, balance, and plyometrics/ agility, each with three levels of increasing difficulty
• Part 3: Running exercises at moderate/high speed combined with planting/cutting movements.
Dr Doron SherKnee & Shoulder Surgery
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Dr Doron SherKnee & Shoulder Surgery
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Dr Doron SherKnee & Shoulder Surgery
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Dr Doron SherKnee & Shoulder Surgery
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Dr Doron SherKnee & Shoulder Surgery
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Dr Doron SherKnee & Shoulder Surgery
Summary
• Common injury
• Current operation works very well
• New operations need to be monitored very
closely
• Rehab improving
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Thank you