title: Irreducible traumatic posterior hip dislocation with entrapment and a buttonhole effect.
abstract: The authors reported the case of a 27-year-old man who sustained an irreducible postero-lateral traumatic dislocation of the hip with capsular and labral entrapment. Initial X-rays showed only a small acetabular fragment. After two attempts to reduce the hip with muscle paralysis under general anaesthesia failed, the patient was treated by immediate open reduction through a postero-lateral approach. Surgical exploration of the hip revealed a small osteochondral fragment attached to a large piece of labrum and capsule, clogging the acetabulum. The femoral head crossed over the torn capsule with a buttonhole effect. These elements were relieved, the bone fragment was fixed with a 2 mm screw and the capsule was repaired. At the 10-year follow-up, the functional outcome was excellent with a Harris score of 100 points and no signs of necrosis or osteoarthritis. The authors propose a literature review of this uncommon lesion.
authors.affiliation: Department of Trauma and Orthopaedic Surgery, CHRU de Pointe-A-Pitre, 97159 Pointe-A-Pitre, Guadeloupe, France.
authors.forename: Andre-Pierre
authors.initials: AP
authors.lastname: Uzel
authors.forename: Ricardo
authors.initials: R
authors.lastname: Bertino
authors.forename: Guy
authors.initials: G
authors.lastname: Daculsi
authors.forename: George-Yves
authors.initials: GY
authors.lastname: Laflamme
mesh_terms: D000077:Acetabulum; D001863:Bone Screws; D005270:Femur Head; D006617:Hip Dislocation / Q000601:surgery; D006801:Humans; D019637:Orthopedic Procedures