The effect of preoperative status and timing on outcome following total hip arthroplasty /

Introduction. Total hip arthroplasty (THA) has been well documented to enhance patient function, but patient outcome is dependent on preoperative status. The exact timing of surgery to optimize patient outcome after THA remains unknown. This study determines the ideal timing for surgery to obtain the best possible functional outcome.Methods. Prospective, multicenter, cohort studies of 175 hybrid THAs. General health (SF-36) and disease specific (WOMAC and Harris Hip Score (HHS)) questionnaires were used to determine preoperative and 2 year final outcomes. Student's t-test, 95% confidence intervals, receiver operator characteristic curves, simple regression analysis and probability were measured.Results. All functional scores were improved significantly postoperatively (p