Abstract: Objective〓〖WTBZ〗To explore the application effect of arthroscopic knotless suture bridge technique in the treatment of patients with large rotator cuff tear.〖WTHZ〗Methods〓〖WTBZ〗Retrospective analysis of clinical data from 213 patients with large rotator cuff tear in first department of orthopedics of Qinhuangdao Military Hospital from January 2022 to October 2023.According to different treatment methods,they were divided into conventional knot group (n=77) and knotless group (n=136).The conventional knot group was treated with arthroscopic knot suture bridge technique,while the knotless group was given arthroscopic knotless suture bridge technique.The treatment effects were compared.Postoperative complications were recorded and the occurrence of rotator cuff retear was followed up.Results At 6 months after treatment,the SF-MPQ pain scores in conventional knot group and knotless group significantly reduced (P<0.05),and the Constant score,UCLASS score and ASES shoulder joint score and the angles of shoulder anteflexion,abduction,internal rotation and external rotation in both groups were significantly improved at 6 months after treatment (P<0.05).However, there was no significant difference in SF-MPO scores, Constant, UCLASS and ASES scores between the two groups compared with those before surgery (P>0.05).The incidence of complications and retear were 4.41% and 1.47% in the no-nodule group, and 11.69% and 6.49% in the conventional nodule group, respectively, and there was statistical significance between the two groups (P<0.05).Conclusion Arthroscopic knot and knotless suture bridge techniques can promote joint function recovery of large rotator cuff tear,and both have high minimally invasive value.However,knotless suture bridge technique has greater advantages in reducing complications and retear rate.

Key words: massive rotator cuff tear, arthroscopic knotless suture bridge technique, joint function, re-tear rate