Patient-Reported Pain and/or Function Improvement after Total Hip Arthroplasty | Percentage of patients 18 years of age and older who obtained an improvement of at least 1 minimal clinically important difference (MCID) in hip pain and/or function as measured by validated patient-reported outcome measures (PROMs) completed up to 90 days prior to and 9 to 15 months after undergoing primary total hip arthroplasty (THA) surgery. PROMs include any validated measures of hip-related pain and/or function with MCID thresholds supported by literature, including HOOS-Pain (24 points), HOOS-PS (23 points), and HOOS-JR (18 points). | YES | Registry |