The impact of obesity on weight change and outcomes at 12 months in patients undergoing total hip arthroplasty

Abstract

Objectives: To establish the rate of clinically significant weight change after 12 months in patients who have had a primary total hip arthroplasty (THA); to identify patient characteristics that predicted weight loss or gain; and to compare clinical and functional outcomes between obese and non-obese patients. Design, setting and participants: Prospective study of 471 patients who underwent THA between 2006 and 2007 at St Vincent's Hospital, Melbourne, a university-affiliated tertiary referral centre. Patients were classified as non-obese, obese and morbidly obese, and were assessed using the Harris Hip Score (HHS) and 12-item Short Form Health Survey (SF-12). Main outcome measures: Inciden..