This 2013 case series by Mihata introduces arthroscopic superior capsule reconstruction (ASCR) as a treatment for irreparable rotator cuff tears. Unlike conventional patch grafts sutured to the torn tendon stump, ASCR anchors a folded fascia lata graft from the superior glenoid tubercle to the greater tuberosity, reconstructing the missing superior capsule. The study reports functional and radiographic outcomes in 24 shoulders at mean 34-month follow-up.
Before ASCR, no reliable option existed for patients with truly irreparable rotator cuff tears who were not candidates for reverse total shoulder arthroplasty. Conventional patch grafts failed at high rates because anchoring to the retracted tendon stump does not restore superior stability.
ASCR works by bridging the entire capsular defect — glenoid to greater tuberosity. Creating a passive restraint to superior humeral migration. This is why AHD actually increases postoperatively, something conventional patch grafts could not achieve.
When you see an irreparable posterosuperior tear in a patient under 70 without Hamada stage V disease, axillary nerve palsy, or deltoid dysfunction, ASCR is the framework for the modern biological reconstruction approach.
Be vigilant about infraspinatus fatty degeneration: all failures in this series occurred in shoulders with severe fatty infiltration, and all failed within 3 months. A thick, oversized graft is the technical counter. The paper specifically recommends a large fascia lata when infraspinatus degeneration is severe.
This 2013 case series by Mihata introduces arthroscopic superior capsule reconstruction (ASCR) as a treatment for irreparable rotator cuff tears. Unlike conventional patch grafts sutured to the torn tendon stump, ASCR anchors a folded fascia lata graft from the superior glenoid tubercle to the greater tuberosity, reconstructing the missing superior capsule. The study reports functional and radiographic outcomes in 24 shoulders at mean 34-month follow-up.
Before ASCR, no reliable option existed for patients with truly irreparable rotator cuff tears who were not candidates for reverse total shoulder arthroplasty. Conventional patch grafts failed at high rates because anchoring to the retracted tendon stump does not restore superior stability.
ASCR works by bridging the entire capsular defect — glenoid to greater tuberosity. Creating a passive restraint to superior humeral migration. This is why AHD actually increases postoperatively, something conventional patch grafts could not achieve.
When you see an irreparable posterosuperior tear in a patient under 70 without Hamada stage V disease, axillary nerve palsy, or deltoid dysfunction, ASCR is the framework for the modern biological reconstruction approach.
Be vigilant about infraspinatus fatty degeneration: all failures in this series occurred in shoulders with severe fatty infiltration, and all failed within 3 months. A thick, oversized graft is the technical counter. The paper specifically recommends a large fascia lata when infraspinatus degeneration is severe.