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RESURFACING HIP ARTHROPLASTY AND TOTAL HIP ARTHROPLASTY. ANALYSIS OF EARLY RESULTS, DISCHARGE PATTERN AND COST IMPLICATIONS

7th Congress of the European Federation of National Associations of Orthopaedics and Traumatology, Lisbon - 4-7 June, 2005



Abstract

Aims: To compare the results of resurfacing hip arthroplasty with conventional total hip replacement and to find out any differences in complication rates, discharge patterns and the resulting financial implications.

Trial Design: Retrospective analysis comparing resurfacing hip arthroplasties to conventional total hip replacements in patients who were 65 years old or younger at the time of operation. Criteria for comparison were blood loss, post operative complications (including the need for blood transfusion), revision of arthroplasty and the length of hospital stay.

Materials and Methods: All patients who had resurfacing arthroplasty in our hospital were included in the study (77 patients), and a similar group who had total hip replacements in the same time period were randomly selected for comparison. Case notes, computer records as well as X-rays were used to identify postoperative complications, especially DVT’s ,PE’s, neuro-vascular injuries, infection, fractured neck of femur and the need for revision of an arthroplasty. A detailed analysis of all revision arthroplasties including the causes, failure pattern of implant and the type of revision hip arthroplasty used and its cost implication was made. We also compared the pre and post-operative haemoglobin and units of blood transfused, if any. A comparison was also made of discharge pattern of these two groups of patients. A student t-test was performed to observe any difference in these two group.

Results:

  1. Resurface hip arthroplasty Group: Average age 52.1 years; pre-operative Hb 14.22gm/dl; postoperative Hb.10.95gm/dl; average blood loss 3.28 gm/dl; Total hips revised 12; Average length of stay 8.53 days.

  2. Total hip arthroplasty Group: Average age 58.8 years; pre-operative Hb 13.97gm/dl; post-operative Hb 10.65m/dl; average blood loss 3.5 gm/dl; Total hips revised 0; Average length of stay 8.9 days.

Conclusions: 1.There were no appreciable differences between these two group as far as the usual complications, blood loss and length of stay are concerned. 2. There was appreciable difference in revision rate, which has significant cost implication for health authority and patients

Theses abstracts were prepared by Professor Roger Lemaire. Correspondence should be addressed to EFORT Central Office, Freihofstrasse 22, CH-8700 Küsnacht, Switzerland.