EMSB and DLSB procedures. For EMSB, a suture is passed through the superficial and deep layers (A) and bridged with lateral anchors (B). For DLSB, the superficial layer is first repaired with medial anchors (C); then, the remaining sutures are passed through the deep layer and bridged with lateral anchors (D). Abbreviations: EMSB: en masse suture bridge, DLSB: double layer suture bridge, SL: superficial layer, DL: deep layer, C2 and D2: arthroscopic images of the right shoulder as viewed from the posterolateral portal.