Article révisé par les pairs
Résumé : Osteochondritis dissecans is a necrosis of the subchondral bone and the overlying cartilage. In the advanced stages, a fragment can detache and can be found free in intra-articular, responsible for blockages. This pathology affects adolescents, especially men; a notion of intense physical activity is often found. The most interested joint is the knee, especially the medial femoral condyle. Symptoms (pain, blockages) and clinicals signs (edema, crepitations) worsen during physical activity. The treatment begins with an exhaustive clinical examination, follows the iconographic assessment (standard radiographs, MRI), conservatives treatments generally predominate surgicals techniques. But, these last are sometimes inevitables. Rehabilitation is essential in order to avoid residual functional impotence. In this context, we propose the use of an isokinetic test, which makes it possible to personalize the management and adaptation of the rehabilitation to the needs of each one. The long term follow-up is essential to monitor and prevent osteoarthritis.