Freychet, Benjamin

Abstract Injuries to the posterolateral corner (PLC) of the knee are uncommon, and usually associated with other ligamentous injuries. A combined posterior cruciate ligament (PCL) and PLC tear is the most frequent combination. Several studies describe anatomic reconstructive techniques using an open approach with large incisions and extensive exploration of the posterolateral structures. This Technical Note describes an all‐arthroscopic technique as a safe and efficient treatment of combined PCL and PLC instability using the trans‐septal approach. Technique Video video See video under supplementary data.

Abstract Posterolateral corner injuries are complex injuries, and their therapeutic management varies from one individual to another. Biomechanical studies demonstrate that anatomic posterolateral corner reconstruction restores knee kinematics better than nonanatomic reconstruction. The purpose of this report is to describe an all‐arthroscopic procedure for anatomic posterolateral corner reconstruction. Technique Video video See video under supplementary data.

Abstract Arthroscopic assessment of posterior compartments of the knee and the posterior aspect of the proximal tibial and fibula is challenging because of the relative proximity of the neurovascular bundle. This Technical Note describes a reproducible arthroscopic surgical approach in a cadaveric model that aims to identify and expose the popliteus tendon, posterior fibular head, fibular collateral ligament popliteal fibular ligament, biceps femoris tendon, and peroneal nerve. Technique Video video See video under supplementary data.

Objectives The purpose of this study was to describe an arthroscopic surgical approach to identify and expose the popliteus tendon (PT), posterior fibular head, Fibular collateral ligament (FCL), popliteal fibular ligament (PFL), biceps femoris tendon, and the peroneal nerve. Methods 10 fresh human cadaveric knees were examined arthroscopically using standard anterior and posterior portals. The use of a transeptal approach with both posteromedial and posterolateral portals was required using a standard 30 degrees arthroscope. Optimal portal placement and specific technique and sequence for appropriate visualization of the PLC structures were tested and documented. Results In all specimens, all the PLC structures that we attempted to identify were successfully visualized. These included the PT, posterior fibular head, the FCL, the PFL, biceps femoris tendon, peroneal nerve, PT and FCL femoral attachments. Conclusion This study demonstrated that the identification and exposure of the PLC structures using an all arthroscopic approach can be successfully performed with precise portal placement. This technique may serve as a basis for arthroscopic treatment of PLC injuries.