AANA/ISAKOS Knee and Shoulder Arthroscopy Course-Online Didactics (April 2024)-The Posterolateral Corner

Video Transcription

Video Summary

This video details a complex posterolateral knee reconstruction surgery. Equipment includes scalpels, grafts (semitendinosus, tibialis anterior), suture anchors, cancellous screws, washers, reamers, and suture devices. The procedure begins with a lateral incision near Gerdy's tubercle and fibular head, carefully isolating and protecting the common peroneal nerve. A drill hole is created through the fibular head to pass the semitendinosus allograft, reconstructing the popliteus tendon and fibular collateral ligament in a figure-eight fashion. The iliotibial band and lateral femoral condyle are exposed; capsular incisions allow access to the posterolateral capsule. A capsular shift reduces redundancy, improving stability. The semitendinosus graft is fixed with a screw, washer, and sutures. In some cases, a tibial tunnel is drilled to pass a tibialis anterior graft for additional support, fixed with anchors, interference screws, and buttons. The grafts are tensioned with the knee at specific flexion angles to restore function and prevent instability. Final closure includes reinforcement with platelet-rich fibrin matrix.

Keywords

posterolateral knee reconstruction

semitendinosus allograft

fibular collateral ligament

common peroneal nerve protection

capsular shift technique

platelet-rich fibrin matrix