Fig 1.

Intraoperative arthroscopic images of a right shoulder taken through the anterolateral viewing portal. (A) A burner is used to clear off soft tissue from the supraspinatus insertion on the humeral head prior to the use of an awl to create marrow vents to induce healing of the rotator cuff repair. (B) A preloaded anchor is inserted into the supraspinatus insertion site. The sutures attached to this anchor will be passed through the center of the nanofiber scaffold. (C) The sutures from the medial row (thin white arrows) pass over the supraspinatus to the lateral row (thin black arrow). The scaffold (thick blue arrow) can be seen sandwiched between the humeral head (thick black arrow) and supraspinatus tendon (thick white arrow).