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- Talk
- 15/09/2021
- Canada
Biomechanical Assessment of Knee Laxity Following a Novel Posterolateral Corner Reconstruction Technique
Description
The presentation by Ryan Willing focuses on the biomechanical assessment of knee laxity following two techniques for posterolateral corner (PLC) reconstruction, specifically analyzing the effectiveness of a novel modified anatomical technique in comparison to the traditional approach. The presentation begins by outlining the importance of the fibular collateral ligament, popliteofibular ligament, and popliteus tendon as key stabilizers of the knee, emphasizing the need for effective reconstruction in cases of PLC injuries to prevent further degeneration and instability in the knee joint.
Willing discusses a historical context, citing LaPrade's anatomical reconstruction method which utilizes an Achilles tendon allograft and how Whitt proposed a modified technique using a single semitendinosus autograft. The study conducted compares both reconstruction techniques by examining their ability to restore stability through biomechanical testing on cadaveric knee specimens subjected to simulated PLC injuries.
The results indicate that both techniques successfully restored coronal and rotary stability, highlighting slight advantages in reduced rotatory laxity for the modified technique under specific conditions. Willing acknowledges complications related to graft availability and costs with allografts, suggesting that the single autograft method may offer better feasibility in certain surgical environments. The presentation concludes with acknowledgments to supporters and a call for future scrutiny into the tensioning techniques of these surgical methods.