Usefulness of Arthroscopic Treatment of Painful

On account of an increasing understanding of femoroac-etabular impingement (FAI), hip arthroscopy has gained considerable popularity in the past decade.1) And there has been an increasing body of literature regarding ar-throscopic management of FAI and most of them were intra-articular pathologies about cam- and pincer-type of FAI.2-5) Recent sports medicine literature has focused mainly on these hip conditions, but advances in diagnostic imaging techniques now allow for the precise diagnosis of various intra-articular conditions including labral tears, chondral lesions, hip osteoarthritis, ruptured ligamentum teres, osteonecrosis, problems after hip resurfacing or arthroplasty, hip instability, synovial conditions, and prob-lems associated trauma.6,7) Among them, nonconcentric reduction after hip dislocation or intra-articular fragment