['Subacromial impingement syndrome (SIS) is one of the most frequent shoulder pathologies. Initial treatment is conservative. Subacromial injection of drugs achieves a high concentration at the pathologic site with less drug use and fewer systemic side effects. Glucocorticoids are most frequently injected. One concern with steroid use is the wide array of potential systemic and local complications. Nonsteroidal anti-inflammatory drugs (NSAIDs) are also peripherally acting and can be used locally. Although intraarticular (IA) use of NSAIDs is common in orthopedic practice, it is mostly restricted to the knee joint. Reports of local NSAID for joint pathologies are relatively rare. This study compared the efficacy of single-dose subacromial injections of betamethasone and lornoxicam for treatment of SIS.', 'Subacromial injections of either 7.0\xa0mg betamethasone or 8\xa0mg lornoxicam were received by 70\xa0patients with mean age 53\xa0(46-68)\xa0years. Treatment outcome was assessed with Constant-Murley and UCLA questionnaires before injection and at 2‑, 4‑, and 6‑week follow-ups.', 'The change in outcome scores compared to pretreatment was higher in the steroid group at all follow-ups (p\xa0<\xa00.001). Patients in the steroid group showed a\xa0significant improvement at all follow-ups compared to pretreatment (p\xa0<0.001) and previous follow-ups (p\xa0<0.05) at all times. Patients in the lornoxicam group showed a\xa0significant functional improvement in week\xa02 (p\xa0<0.001), which was not evident in the following weeks (p\xa0>0.05). Although functional recovery halted after week\xa02, outcome scores remained significantly higher than the pretreatment values at all weeks (p\xa0<0.001).'] Is lornoxicam injection inferior to betamethasone in the treatment of subacromial impingement syndrome : A prospective randomized study of functional outcomes?