Rotator cuff tear is a common type of injury in the current clinical practice. Over 90% of the patients are caused by chronic injuries. Massive rotator cuff tear is a type which exceeds 5 cm or is accompanied by the rupture of at least 2 tendons, and how to deal with this type of injury has become an intractable problem in clinical practice. These patients are generally accompanied by rotator cuff retraction, adhesion, tendon rupture, irregular stump, and poor blood supply, which impairs the tendon-bone healing. The biological environment and tendon blood supply factors make the clinical effect insufficient. Allogeneic acellular dermal patch repair is a patch repair technology which has emerged in recent years and achieved remarkable results in the treatment of giant umbilical bulge, but there are few clinical studies involving massive rotator cuff tear repair.

To analyze the early- and medium-term curative effect of allogeneic acellular dermal patch repair for massive rotator cuff tears.

From July 2019 to June 2020, 12 patients with massive rotator cuff tears received allogeneic acellular dermal patch repair in our hospital, and were followed up for 3 months. The clinical data were retrospectively analyzed.

Three months after operation, the range of shoulder motion (forward lifting, abduction, external rotation and backward extension) , shoulder function score, and quality of life score (physiology , psychology, social relations and environment) of 12 patients were significantly higher than those before operation, and the VAS score was significantly lower than that before operation. There were statistical differences (P<0.05) . After 3 months follow-up, there was no infection cases occurred, and the complication rate was 0.00%.

Allogeneic acellular dermal patch repair has a definite early- and medium-term curative effect with high safety in the treatment of massive rotator cuff tears. It is worthy of promotion for future treatment.