Abstract:

Objective To observe the efficacy of double rotator interval slide technique in arthroscopicrepair of massive，posterosuperior，contracted rotator cuff tears. Methods Twenty ⁃eight patients with massive，posterosuperior，contracted rotator cuff tears were randomly assigned to two groups. The control group（n = 14）was treated with anterior rotator interval slip technique during arthroscopic repair. The observation group（n = 14）received double rotator interval slip technique both anterior and posterior. The operation durationand postoperativecomplications were observed，and the improvement degree of VAS score，constant⁃Murley shoulder score，Sugayaimaging grade of MRI and range of active motion of shoulder were compared between the two groups 12 monthsafter surgery. Results All operations were successfully completed and all patients were followed up for 12 months.There was no significant difference in the improvement degree of constant ⁃Murley shoulder score between the twogroups 12 months after surgery（P > 0.05）. The results showed the observation group was better than that of thecontrol group in terms of the improvement degree of VAS score，range of active motion of shoulder and Sugayaimaging grading of MRI 12 months after surgery（P < 0.05）. Conclusion The double rotator interval slip techniquecould significantly improve the VAS score，active forward flexion motion of shoulder joint and internal and externalrotation motion，and the Sugaya imaging grading of MRI after the rotator cuff tears suture，which is worthy of clini⁃cal promotion.

Key words:

arthroscopicmassive, rotator cuff tears, rotator interval slide