“…In one study, at an average followup of 5 years after hip arthroscopy, chondromalacia and osteoarthritis did not predict eventual THA or poor post-operative mHHS [15], whereas another study at 2 years followup, and the previously discussed study at 10 years followup [4], showed a clear influence of preoperative arthritis on postoperative surveys or the mHHS [4,10]. Improved mHHS, patient satisfaction, and no subsequent reoperation or THA at 1.5 years are associated with a diagnosis of labral pathology [1], left-sided surgery, higher preoperative activity level, and longer preoperative duration of symptoms [15], whereas lower improvements in mHHS and other questionnaires examining pain and function are associated with older age at surgery [1,2,15]. The 10-year followup study [4] showed an increase in mHHS after arthroscopy treatment for labral tears, loose bodies, synovitis, and chondral injury as long as those indications were not also associated with arthritis or avascular necrosis.…”