Abstract:Objective To summarize the clinical experience of arthroscopic three-point positioning technique in repairing rotator cuff injury.Methods From January 2018 to June 2019, 52 patients with rotator cuff injury who met the inclusion criteria were divided into two groups according to different surgical methods. Group A (n = 26) used traditional two-point positioning technology, group B (n = 26) used three-point positioning technology. Operation time, visual analogue scale (VAS), University of California at LosAngeles (UCLA) shoulder score, American Shoulder Elbow Surgeons (ASES) score, external rotation range of motion, flexion range of motion and abduction range of motion were compared between the two groups.Results The average operation time was 143.4 min in group A and 97.2 min in group B; Preoperative VAS, UCLA, ASES score, external rotation activity, flexion range of motion, outreach activity in group A were (6.9 ± 1.2), (14.8 ± 2.3), (44.7 ± 7.7), (17.4 ± 5.0)°, (83.0 ± 11.1)° and (78.0 ± 11.8)°, the postoperative results were (1.7 ± 0.7), (30.5 ± 2.6), (83.3 ± 4.7), (38.9 ± 3.7)°, (162.6 ± 8.1)° and (152.4 ± 13.0)°, the differences were statistically significant before and after operation (P < 0.05). Preoperative VAS, UCLA, ASES score, external rotation activity, flexion range of motion, outreach activity in group B were (7.2 ± 1.0), (16.0 ± 2.5), (43.0 ± 5.8), (16.1 ± 5.2)°, (81.1 ± 12.0)°and (78.3 ± 9.1)°, the postoperative results were (1.6 ± 0.7), (32.8 ± 3.2), (84.7 ± 7.4), (38.9 ± 4.5)°, (160.7 ± 8.4)°, (145.0 ± 19.8)°, the differences were statistically significant before and after operation (P < 0.05).Conclusion Although traditional two-point positioning technology and three-point positioning technology can achieve good clinical results in treatment of rotator cuff injury, three-point positioning technology has shorter operation time and faster recovery of shoulder joint function, which is more suitable for beginners of shoulder arthroscopy.