title: Corrective osteotomy for volar instability of the distal radioulnar Joint associated with radial shaft malunion.
abstract: Volar instability of the distal radioulnar joint is an uncommon wrist disorder. We report three cases of recurrent volar instability of the distal radioulnar joint secondary to fracture of the radial shaft. In all cases, X-rays showed a volar apex deformity of the radial shaft. Opening wedge osteotomy and iliac bone grafting was performed on the distal diaphysis of the radius instead of on the radial shaft, in order to adjust the distal radioulnar joint more easily. Pre-operative dislocations and painful clunks disappeared in all three patients. However, slight instability of the distal radioulnar joint remained in all cases. Osteoarthritis of the distal radioulnar joint was noted in one patient 31 months after the operation. All of the patients were satisfied with the results and did not desire further operations.
authors.affiliation: Department of Orthopedic Surgery, Sapporo Medical University, Sapporo, Japan. oda@sapmed.ac.jp
authors.forename: T
authors.initials: T
authors.lastname: Oda
authors.forename: T
authors.initials: T
authors.lastname: Wada
authors.forename: S
authors.initials: S
authors.lastname: Isogai
authors.forename: K
authors.initials: K
authors.lastname: Iba
authors.forename: M
authors.initials: M
authors.lastname: Aoki
authors.forename: T
authors.initials: T
authors.lastname: Yamashita
mesh_terms: D000328:Adult; D001860:Bone Plates; D016025:Bone Transplantation; D017759:Fractures, Malunited / Q000150:complications / Q000000981:diagnostic imaging / Q000601:surgery*; D006801:Humans; D004204:Joint Dislocations / Q000000981:diagnostic imaging / Q000601:surgery*; D007593:Joint Instability / Q000000981:diagnostic imaging / Q000601:surgery*; D008297:Male; D010003:Osteoarthritis / Q000209:etiology; D010027:Osteotomy / Q000379:methods*; D011183:Postoperative Complications / Q000000981:diagnostic imaging / Q000601:surgery; D011885:Radius Fractures / Q000150:complications / Q000000981:diagnostic imaging / Q000601:surgery*; D016059:Range of Motion, Articular / Q000502:physiology; D012008:Recurrence; D013484:Supination / Q000502:physiology; D014057:Tomography, X-Ray Computed; D014954:Wrist Injuries / Q000000981:diagnostic imaging / Q000601:surgery*