[Description of an arthroscopic and percutaneous technique to repair posterolateral corner knee lesions].

Posterolateral corner knee lesions are infrequent and very disabling. They usually occur with other ligament lesions, so historically different techniques have been used to reconstruct this kind of lesions. Most of them involve open surgery, with the Clancy procedure as one of the most popular ones. After thorough preoperative planning taking into account the patient's activities, we propose a new arthroscopic and percutaneous technique based on Clancy's procedure, using a calcaneal tendon or quadriceps allograft.