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The Oxford unicompartmental knee replacement (UKR) is an established treatment option in the management of symptomatic end-stage medial compartmental osteoarthritis (MCOA), which works well in the young and active patient. However, previous studies have shown that it is reliable only in the presence of a functionally intact anterior cruciate ligament (ACL). This review reports the outcomes, at a mean of five years and a maximum of ten years, of 52 consecutive patients with a mean age of 51 years (36 to 57) who underwent staged or simultaneous ACL reconstruction and Oxford UKR. At the last follow-up (with one patient lost to follow-up), the mean Oxford knee score was 41 (sd 6.3; 17 to 48). Two patients required conversion to TKR: one for progression of lateral compartment osteoarthritis and one for infection. Implant survival at five years was 93% (95% CI 83 to 100). All but one patient reported being satisfied with the procedure. The outcome was not significantly influenced by age, gender, femoral or tibial tunnel placement, or whether the procedure was undertaken at one- or two-stages. In summary, ACL reconstruction and Oxford UKR gives good results in patients with end-stage MCOA secondary to ACL deficiency.

Original publication

DOI

10.1302/0301-620x.94b9.28881

Type

Journal article

Journal

The Journal of bone and joint surgery. British volume

Publication Date

09/2012

Volume

94

Pages

1216 - 1220

Addresses

Botnar Research Centre, Nuffield Department of Orthopaedics, Rheumatology and Musculoskeletal Sciences, University of Oxford, Windmill Road, Oxford OX3 7LD, UK.

Keywords

Anterior Cruciate Ligament, Humans, Osteoarthritis, Knee, Treatment Outcome, Arthroplasty, Replacement, Knee, Transplantation, Autologous, Follow-Up Studies, Equipment Failure Analysis, Adult, Middle Aged, Patient Satisfaction, Female, Male, Anterior Cruciate Ligament Reconstruction