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THE RELATIONSHIP BETWEEN PATIENT WEIGHT BEFORE AND AFTER JOINT REPLACEMENT SURGERY IN OVERWEIGHT PATIENTS, WHO LOST WEIGHT PRIOR TO SURGERY



Abstract

In total hip arthroplasty (THA), it is preferable that patients have an ideal preoperative Body Mass Index (within 20% of the normal). The purpose of this study is to determine whether patients maintain their preoperative reduced weight after THA and whether the effort of encouragement and cost of a dietician to lose weight preoperatively is worthwhile.

Conducted over five years, this study included 100 patients with a mean age of 62.5 years (34 to 83). Preoperative and postoperative weights were obtained from clinical records.

There was a postoperative weight increase in 51% of patients and a decrease in postoperative weight in 46%. Pre-operative weight was maintained in 3%.

The abstracts were prepared by Professor M. B. E. Sweet. Correspondence should be addressed to him at The Department of Orthopaedic Surgery, Medical School, University of Witwatersrand, 7 York Road, Parktown, Johannesburg, 2193 South Africa