2021 AOSSM-AANA Combined Annual Meeting Recordings-Biomechanical analysis of ideal knee flexion angle for ACL graft tensioning utilizing multiple femoral and tibial tunnel locations

Biomechanical analysis of ideal knee flexion angle for ACL graft tensioning utilizing multiple femoral and tibial tunnel locations

Back to course

Video Transcription

Video Summary

In this video, the presenter discusses a biomechanical analysis of the ideal knee flexion angle for ACL graft tensioning. The study used cadaveric knee specimens to examine different femoral and tibial tunnel locations. The presenter explains that accurate tunnel placement is crucial for ACL reconstruction, as malpositioning can lead to graft failure. They compare the two common drilling techniques: anatomic and trans-tibial, and discuss their accuracy levels. The study findings indicate that the ACL is not isometric, and the flexion angle for maximum graft excursion varies depending on the femoral tunnel location. The presenter concludes that adjusting graft tightening based on tunnel placement can reduce the risk of re-rupture. No credits are mentioned.

Asset Caption

Jon Hammarstedt, MD

Keywords

biomechanical analysis

knee flexion angle

ACL graft tensioning

tunnel placement

ACL reconstruction