Arthroscopic Subscapularis Repair Through a Single Anterior Portal

Arthroscopic subscapularis repair with knotted suture fixation typically requires use of both anterior and accessory superolateral portals with passage of suture through multiple anatomic spaces. The advent of knotless anchors has allowed for simplification of subscapularis repairs. In this report we describe a simple method of knotless arthroscopic subscapularis repair through a single anterior portal. The indication for a single-anterior portal knotless subscapularis repair is a complete tear of the upper one-third of the subscapularis. This approach can be used for isolated subscapularis repair or, in patients with multiple-tendon involvement, initial subscapularis repair to facilitate subsequent posterosuperior cuff repair.