The ‘forgotten’ lateral patellofemoral ligament: The known unknown

Abstract

Abstract The lateral patellofemoral ligament (LPFL) is an important anatomical structure and a stabilizer of the patella against medial subluxation or dislocation. It is located within the second layer of the lateral soft tissue of the knee, with firm attachments to the anterior‐distal region of the lateral femoral epicondyle and the the lateral edge of the patella and patellar tendon. LPFL has a non‐isometric character and decreases its length across the knee flexion, especially from 0° to 30°. Most LPFL injuries are iatrogenic (> 90%) and occur during lateral retinacular release, while the mainstay treatment option involves reconstruction of the torn ligament using an autograft or an allograft.