A retrospective analysis was performed on patients with partial-thickness rotator cuff tendon tears who underwent arthroscopic surgery from August 2006 to December 2011. To evaluate functional outcomes and tendon healing after arthroscopy.

To study the surgical method and clinical effect of arthroscopic treatment of rotator cuff tendon tear. Retrospective analysis was performed on patients with rotator cuff tendon tears who underwent arthroscopic surgery from August 2006 to December 2011. Preoperative X-ray and MRI were performed. Rotator cuff repair was performed during the operation. UCLA shoulder scoring scale was used to evaluate the shoulder joint at preoperative and final follow-up.

Inclusion Criteria:

• From August 2006 to December 2011, patients with partial-thickness rotator cuff tendon tears who underwent arthroscopic surgery in our department and were successfully followed up.

Exclusion Criteria:

• Patients with frozen shoulder and shoulder joint instability.

Patients diagnosed with partial-thickness rotator cuff tendon tears. Partial rotator cuff tears can be divided into three categories, bursa side tears, tendon tears and joint side tears. Studies have found that rotator cuff tendon tears account for 55% of partial tears, compared to the other two types of partial tears, there has been very little research on partial-thickness rotator cuff tendon tears, which has no consensus on diagnosis and treatment.