RESULTS OF OXFORD UNICOMPARTMENTAL KNEE REPLACEMENT IN A DISTRICT GENERAL HOSPITAL IN U.K.

Abstract

Aims of study: The aim of this study was to analyze the results of oxford unicompartmental knee replacement in a distrct general hospital in UK.

Methods of study: A prospective study of 50 patients undergoing minimally invasive oxford unicompartmental knee replacement for osteoarthritis was conducted between 2001 and 2005. All patients were operated by the senior author of the study. Oxford Phase III medial unicompartmental (meniscal bearing) instrumentation and implants used in all cases.

Pre-op oxford knee score was recorded in all the patients. Post-op scores were recorded annually and at final follow up. X-rays were analyzed for implant positioning and loosening. Data were analyzed using SPSS version 12.

Results: Mean age of patients in our group was 65 years (range 44–78 years). There were 32 females and 18 males in the study. There were no intra-operative complications in any of the patients. Average duration of follow up was 16 months (range 6 months–4 years). Significant improvement in Oxford Knee score was noted after the surgery (43.7 vs. 20.8) (p< 0.05). Average duration of hospital stay was 4 days (range 3–6 days).

Conclusion: Oxford unicompartmental knee replacement gives excellent results, given careful patient selection, meticulous surgical technique and post-operative rehabilitation.