Odumenya, M. (Michelle), Costa, Matthew L., Parsons, Nicholas R., Achten, Juul, Dhillon, M. and Krikler, S. J.. (2010) The Avon patellofemoral joint replacement : five year results from an independent centre. Journal of Bone and Joint Surgery - British Volume, Vol.92-B (No.1). pp. 56-60. ISSN 0301-620X

Abstract

Between May 1998 and May 2007 we carried out 50 Avon patellofemoral joint replacements in 32 patients with isolated patellofemoral osteoarthritis. There were no revisions in the first five years, giving a cumulative survival of 100% for those with a minimum follow-up of five years. The mean follow-up was 5.3 years (2.1 to 10.2). The median Oxford knee score was 30.5 (interquartile range 22.25 to 42.25). In patients with bilateral replacements the median Euroqol General health score was 50 which was significantly lower than that of 75 in those with a unilateral replacement (p = 0.047). The main complication was progression of disease, which was identified radiologically in 11 knees (22%). This highlights the need for accurate selection of patients. Our findings suggest that the Avon prosthesis survives well and gives a satisfactory functional outcome in the medium term.

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