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THE RESULTS OF COMPARISON OF FUNCTIONAL ACTIVITY OF HIP RESURFACING WITH TOTAL HIP REPLACEMENT



Abstract

Introduction: We report the results of activity and functional outcome of matched pair analysis comparing hip resurfacing with total hip replacement with a minimum follow up of 22 months

Materials and Methods: 14 matched pairs were selected in terms of age (within 4 years), sex and diagnosis, of which 10 pairs were females and 4 pairs were males The mean age was 49.7(19 – 63). The Birmingham hip resurfacing was used in all patients in the resurfacing group and the Furlong HAC stem in all cases in the THR group with the CSF cup in most cases. The mean follow up in BHR group was 5.2 years (1.7 – 9.2) and 2.4 years (1.8 – 3.6) in THR group. Functional outcome was measured using Harris Hip score, WOMAC, SF 36 and the UCLA and Tegner activity scores

Results: The mean Harris Hip score, SF 36, WOMAC, UCLA and Tegner activity scores in the BHR group were 86.8, 77.3,49.7, 6.1 and 3.6 respectively. In the Furlong group the Harris Hip score, SF36, WOMAC, UCLA and Tegner activity scores were 82.9, 79.0,29.5, 5.6 and 3.2 respectively. There was no statistical difference in the mean scores between the two groups.

With regard to functional activity, 21% of patients in both the groups scored 8 or more on the UCLA activity scale. 21% of patients in the BHR and 14% in the Furlong group scored 3 or more on the Tegner activity scale

Conclusion: In our study, hip resurfacing was not associated with a significant increase in activity level or functional outcome compared with total hip replacement.

Correspondence should be addressed to The Secretary, BHS, c/o BOA, The Royal College of Surgeons, 35–43 Lincoln’s Inn Fields, London WC2A 3PE.