Cookies on this website
We use cookies to ensure that we give you the best experience on our website. If you click 'Continue' we'll assume that you are happy to receive all cookies and you won't see this message again. Click 'Find out more' for information on how to change your cookie settings.

Unicompartmental knee replacement (UKR) is now established as a treatment for medial compartment arthritis. The Oxford UKR (Biomet Orthopedics, Inc, Warsaw, IN, USA) has a mobile-bearing system, which minimizes wear. This has been shown to provide excellent long-term results. Dislocation of the mobile-bearing device is rare with an incidence of 1 in 200 (0.5 %). The treatment usually involves exploration of the knee through the original anteromedial incision, removal of the dislocated bearing and rectification of the underlying cause for the dislocation. We describe two cases of a posterior dislocation in which the mobile bearing could not be retrieved and was left in situ. In both cases a good outcome was achieved. We conclude that in extremely rare cases where a dislocated bearing has migrated posteromedially and cannot be retrieved, it can be left in place rather than exploring the joint acutely through a separate posterior incision.

Original publication

DOI

10.1007/s10195-013-0250-2

Type

Journal article

Journal

Journal of orthopaedics and traumatology : official journal of the Italian Society of Orthopaedics and Traumatology

Publication Date

03/2014

Volume

15

Pages

59 - 62

Keywords

Menisci, Tibial, Knee Joint, Humans, Osteoarthritis, Knee, Knee Dislocation, Prosthesis Failure, Treatment Outcome, Device Removal, Arthroplasty, Replacement, Knee, Knee Prosthesis, Middle Aged, Female, Male