Percentage of patients 18 years of age and older who obtained at least a minimal clinically important difference (MCID) in shoulder pain or function as measured by validated patient-reported outcome measures (PROMs) completed up to 90 days prior to and at least one year after undergoing primary total shoulder arthroplasty (TSA) surgery. PROMs include shoulder-related measures of pain and function (PSS-Pain, PSS-Function, PSS-Satisfaction).