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General Orthopaedics

PRIMARY TOTAL KNEE REPLACEMENT SURGERY IN PATIENTS WITH SEVERE HAEMOPHILIA: LONG TERM RESULTS

British Orthopaedic Association (BOA) 2006



Abstract

Haemophilia care has steadily improved over the years and especially so during the last decade. The routine use of prophylactic treatment has undoubtedly resulted in a significant improvement in the life-style, quality of life and life expectancy of these patients. However despite our best efforts there is still a group of young adults who have a severe degree of knee joint destruction as a result of repeated articular bleeding episodes during their early years.

The knee is the most common joint affected in haemophilia (50%). The repeated articular bleeding episodes during the patients' early years leads to the onset of pain and significant functional disability at a time when they require the best possible quality of life. The major objective of total joint replacement is to reduce the level of pain in the affected joint and, in addition, a significant reduction in the frequency and number of joint bleeds, which improves both function and mobility.

The results of 60 primary total knee replacements performed in 42 patients with severe haemophilia between 1983 and 2003 were reviewed retrospectively. Functional results were assessed using the Hospital for Special Surgery (HSS) knee score both pre- and post-operatively. Kaplan-Meier survivorship analysis was used to calculate prosthetic survival.

The mean age of patients was 43.35 (range 25-70yrs). The overall prevalence of infection was less than 2%. The HSS clinical score was excellent or good for 95% of the knees.

We believe that total joint replacement is a safe and effective procedure in the management of haemophilic joint arthropathy. The latest techniques using continuous infusion and recombinant factor replacement have gone a long way to reducing the complications rate and to achieving results that match those of the general population.