MCL & POL RECONSTRUCTION FOR VALGUS INSTABILITY AFTER TOTAL KNEE ARTHROPLASTY

Figure 1 - Preoperative radiographs of the left knee. Preoperative anteroposterior (A) and preoperative lateral view (B) radiographs of a total knee arthroplasty with well-positioned tibial and femoral components before surgery for medial collateral ligament and posterior oblique ligament reconstruction. (C) Preoperative long leg standing radiographs demonstrating significant valgus malalignment of the left knee compared with the right knee.

Medial collateral ligament (MCL) injuries are typically managed non-operatively, with high rates of clinical success. However, patients who present with medial knee laxity with valgus stress testing of a fully extended knee, anteromedial rotatory instability, associated tibial plateau fracture, or multiligament injury or those who continue to be symptomatic after non-operative treatment may benefit from surgical intervention. Patients with a history of total knee arthroplasty who suffer MCL and posterior oblique ligament (POL) injuries represent a challenging patient population and often require surgical attention. In this Technical Note, we describe the preoperative assessment, decision making, and surgical technique for anatomic reconstruction of the superficial MCL and POL with an Achilles allograft in young, active patients with medial-sided knee injuries after total knee arthroplasty.

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Medial Collateral Ligament and Posterior Oblique Ligament Reconstruction for Valgus Instability After Total Knee Arthroplasty - PMC (nih.gov)

Published August 6, 2022 in Arthroscopy Techniques.