Anterior impingement syndrome in dancers

Anterior impingement is a common problem in dancers occurring primarily secondary to the repetitive forced ankle dorsiflexion inherent in ballet. Symptoms generally occur progressively and may respond to conservative treatment including addressing biomechanical faults that contribute to the problem. As impingement progresses, movements essential to ballet may become impossible and arthroscopic ankle surgery is often effective for both diagnosis and treatment, allowing athletes to return to dance

Localized pigmented villonodular synovitis with discoid lateral meniscus tear in the same knee in a child

Cas de synovite villonodulaire pigmentée (tumeur bénigne à cellules géantes des articulations) frappant le genou d'un enfant de 9 ans. Histologie : lésions constituées de tissu fibroblastique et histiocytaire très vascularisé. Intérêt de l'IRM, et de l'arthroscopie dans le diagnostic et le traitement