Abstract:[Objective] To compare the clinical outcomes of a modified suture bridge versus traditional suture bridge in arthroscopic re- pairing of moderate rotator cuff tears. [Methods] A retrospective study was conducted on 70 patients who underwent arthroscopic repairing of rotator cuff tear from September 2019 to March 2020 in Department of Sports Medicine, Affiliated Hospital of Qingdao University. Ac- cording to the consequences of preoperative patient-doctor communication, 36 patients received the modified bridge suture, while the re- maining 34 patients underwent the traditional bridge suture. The perioperative, follow-up and imaging documents were compared between the two groups. [Results] The operation was successfully completed in both groups without serious complications. There were no significant differences in operative time, intraoperative blood loss, total length of incision, normal saline irrigation volume intraarticularly, incision healing and hospital stay between the two groups (P>0.05) . The patients in both groups were followed up for more than 15 months. The mod- ified group resumed full weight bearing activity significantly earlier than the traditional group (P<0.05) . Compared with those before opera- tion, the VAS score significantly decreased (P<0.05) , while abduction range of motion (ROM) , forward flexion ROM, external rotation ROM, UCLA score, Constant-Murley score and ASES score significantly increased in both groups at the latest follow up (P<0.05) . Al- though there were no statistically significant differences in the abovementioned items between the two groups preoperatively (P>0.05) , the modified group proved significantly superior to the traditional group in terms of abduction ROM, flexion ROM, external rotation ROM, VAS score, UCLA score and Constant-Murley score at the latest follow-up (P<0.05) , whereas no a statistically significant difference was noted in ASES score between them (P>0.05) . Radiographically, the Sugaya's classification on MRI images was not statistically significant differ- ent between the two groups before surgery (P>0.05) , whereas which in the modified group became significantly better than the traditional group at the latest follow-up (P<0.05) . [Conclusion] Modified suture bridge technique does achieve considerably better clinical outcomes than traditional suture bridge technique.