title: Successful salvage of a recurrently dislocating Oxford medial unicompartmental bearing.
abstract: Dislocation of the bearing of the Oxford medial unicompartmental arthroplasty is a rare but serious complication. We report the case of a 48-year-old woman with a classic anteromedial arthritis who had 2 bearing dislocations within the first 3 months after index surgery. These were attributable to posterior bony impingement of the bearing against a small retained osteophyte. After arthroscopic resection of the osteophyte, she has retained her original components with no further dislocations or signs of impending failure 7 years later. This case report emphasizes the importance of osteophyte removal from the back of the femoral condyle during an Oxford unicompartmental arthroplasty.
authors.affiliation: Orthopaedic Department, Radboud University Medical Center, Nijmegen, The Netherlands.
authors.forename: Tony G
authors.initials: TG
authors.lastname: van Tienen
authors.forename: Susan J
authors.initials: SJ
authors.lastname: Taylor
authors.forename: Rodney B
authors.initials: RB
authors.lastname: Brink