Abstract: Objective　To explore the effect of modified load-sharing rip-stop technique (mLSRS) under arthroscopy in the surgery of large-scale rotator cuff tear. Methods　A retrospective analysis of the data of 76 patients with large-scale rotator cuff laceration admitted to our hospital from September 2018 to September 2020 was conducted. According to different surgical methods, the patients were divided into mLSRS group (observation group, n=37) and suture bridge group (control group, n=39). The shoulder joint function, shoulder joint mobility of patients before and after surgery, the postoperative re-tearing and postoperative complications of two groups were compared. Results　There was no significant difference in ASES score, UCLA score, shoulder mobility, SF-36 score and VAS score between the two groups before surgery(P>0.05); At three months after operation and one year after operation, the ASES score, UCLA score, SF-36 score and shoulder mobility of the two groups were significantly improved compared with preoperatively(P<0.05), the VAS score was significantly lower than that of preoperative(P<0.05), and there was no significant difference between the two groups in each index; There was no significant difference in the total incidence of complications between the two groups within 1 year after surgery (P>0.05), while the incidence of postoperative tearing in the observation group was significantly lower than that in the control group (P<0.05). Conclusion　For patients with large-scale rotator cuff tear, both the mLSRS technique and the double-row suture bridge technique under arthroscopy can achieve satisfactory results, and the mLSRS technique can reduce the occurrence of postoperative type Ⅱ re-tear.   

Key words: Arthroscopy, 　Modified load-sharing rip-stop technique, 　Rotator cuff tear, 　Curative effect