Rotator interval lesion

Rotator interval lesion.

Arthroscopic Rotator Interval Closure

The rotator interval has been identified as an important anatomic structure contributing to shoulder stability. It is defined as the articular capsule bordered by the superior margin of the subscapularis inferiorly, the leading edge of the supraspinatus superiorly, the base of the coracoid medially, and the long head of the biceps tendon laterally (Fig. 1). It varies in size (1), and its incomp...

Rotator Interval Lesion and Damaged Subscapularis Tendon Repair in a High School Baseball Player

In 2013, a 16-year-old baseball pitcher visited Nobuhara Hospital complaining of shoulder pain and limited range of motion in his throwing shoulder. High signal intensity in the rotator interval (RI) area (ball sign), injured subscapularis tendon, and damage to both the superior and middle glenohumeral ligaments were identified using magnetic resonance imaging (MRI). Repair of the RI lesion and...

Indirect arthroscopic rotator interval repair.

Repair of the capsular rotator interval has become a successful adjunct to arthroscopic procedures that address glenohumeral instability. This technical note presents a procedure that allows imbrication of the rotator interval in an indirect fashion regardless of pre-existing arthroscopic portals. A monofilament suture is passed percutaneously using a No.18-gauge spinal needle through the infer...

MR Imaging of the Rotator Cuff and Rotator Interval

The rotator cuff is comprised of the supraspinatus, infraspinatus, subscapularis, and teres minor muscles and tendons. The four muscles of the rotator cuff act as stabilizers of the glenohumeral joint. The supraspinatus is primarily a shoulder abductor. The supraspinatus muscle originates along the dorsal surface of the scapula. The muscle fibers course in a lateral orientation and converge to ...