Does unilateral total hip arthroplasty improve pain and function in the non-operative hip joint?

Some reports suggested that the status of the opposite-side hip affects clinical outcomes of unilateral total hip arthroplasty (THA) for hip osteoarthritis (HOA). This study aimed to determine whether unilateral THA could improve pain and movement of the non-operative hip. The analysis included 195 patients divided into three groups according to contralateral hip status based on radiographic change assessed by Kellgren-Lawrence (KL) grade:...