Arthroscopic visualization of subscapularis tendon lesions.

Certain lesions of the subscapularis tendon are difficult to identify during routine shoulder arthroscopy due to the fact that complete visualization of the tendon's insertion on the lesser tuberosity can be challenging. This article describes a maneuver used during shoulder arthroscopy that provides excellent visualization of the subscapularis tendon insertion on the proximal humerus. This technique is advantageous because (1) it allows for complete visualization of the intra-articular tendinous insertion of the subscapularis using a standard 30 degrees arthroscope inserted through the standard posterior portal and (2) it facilitates the use of standard transrotator interval portals for tendon debridement, suture passage, or implant insertion without the need for accessory portals.