title: Non-reducible knee dislocation with interposition of the vastus medialis muscle.
abstract: Irreducibility of the knee following complete dislocation is a rare event determined by the interposition of various capsulo-ligamentous structures in the joint space. Such cases often require urgent surgical treatment. We report the case of a healthy 70-year-old man with a sprain of the left knee that occurred after a sports trauma. The patient showed knee dislocation with multiple ligamentous injuries and articular block due to interposition of a portion of the vastus medialis muscle. After arthroscopic evaluation, we performed surgical treatment to free the muscle, regularize the medial meniscus and suture the posterior and medial capsule and ligaments; the cruciate ligaments were not treated. The most interesting aspect of the articular damage in this case was a wide detachment of the vastus medialis muscle with intra-articular dislocation. The decision to treat only the posterior lesions and allow the healing of the front ones by rehabilitation treatment was supported by full functional recovery and return to sports activity.
authors.affiliation: Department of Orthopaedics and Traumatology, CTO/M Adelaide Hospital, Turin, Italy.
authors.forename: Alessandro
authors.initials: A
authors.lastname: Bistolfi
authors.forename: Giuseppe
authors.initials: G
authors.lastname: Massazza
authors.forename: Federica
authors.initials: F
authors.lastname: Rosso
authors.forename: Stefano
authors.initials: S
authors.lastname: Ventura
authors.forename: Enzo
authors.initials: E
authors.lastname: Cenna
authors.forename: Luca
authors.initials: L
authors.lastname: Drocco
authors.forename: Maurizio
authors.initials: M
authors.lastname: Crova
mesh_terms: D000368:Aged; D001182:Arthroscopy; D006801:Humans; D031221:Knee Dislocation / Q000473:pathology / Q000534:rehabilitation / Q000601:surgery*; D008279:Magnetic Resonance Imaging; D008297:Male; D019637:Orthopedic Procedures / Q000379:methods*; D052097:Quadriceps Muscle / Q000473:pathology / Q000601:surgery*; D012865:Skiing / Q000293:injuries*