Fig. 4. (A) Arthroscopic image showing a massive rotator cuff tear Fig. 4. (A) Arthroscopic image showing a massive rotator cuff tear. Repair was impossible because the rotator cuff was unable to be mobilized. (B) After allogenic dermal patch graft insertion, single-row repair was performed. The medial border of the graft (arrow) was sutured to the rotator cuff and a suture anchor was inserted at the lateral border of the graft. Clin Orthop Surg. 2018 Jun;10(2):119-134. https://doi.org/10.4055/cios.2018.10.2.119