Jeon YD, Yoon JY, , et al. - The present study was conducted to assess the predictive role of preoperative acromiohumeral distance (AHD) measured using stress radiography on rotator cuff healing and function after arthroscopic repair of massive rotator cuff tears (mRCT). Researchers examined data of 113 individuals who had undergone arthroscopic repair of mRCT. Magnetic resonance imaging was used to assess the postoperative cuff integrity at 1 year and shoulder function was investigated at a mean of 34.9 ± 17.8 (range, 24–92) months postoperatively. The data exhibited that after arthroscopic repair of mRCT, reducible AHD, which increased by more than 3.2 mm under stress radiography, can be a favorable predictor of rotator cuff healing and function. The results imply that this novel and simple radiologic parameter should be considered preoperatively and would be beneficial to ascertain appropriate treatment strategies.