Patients Who Present with Functional Limitations, Limited Range of Motion and Reduced Muscle Strength 6 Months after Total Hip Arthroplasty: A Cross-Sectional Study *

Abstract

Objective To evaluate levels of pain, range of motion, hip isometric peak torque, and functional task performance in patients 6 months after total hip arthroplasty (THA) and to compare them to asymptomatic control participants (CG). Methods We recruited participants with unilateral THA due to hip osteoarthritis (OA) within a median of 6 months who had not developed postoperative complications. We assessed the pain levels, hip range of motion, peak isometric torque, self-reported assessment (Harris Hip Score) and objectively measured function (Timed Up & Go Test [TUG]) of the patients. The THA group was compared with a group of asymptomatic participants ≥ 50 years old recruited in the community. Comparisons are presented as mean differences (MDs) and 95% confidence intervals (CIs).