What Is Superior Capsular Reconstruction?
The shoulder joint is a complex structure composed of ligaments, tendons, and muscles that allow for a wide range of motion. The rotator cuff, in particular, is a sophisticated structure within the shoulder joint that comprises four muscle-tendon units, contributing significantly to the shoulder’s strength and range of motion. When a rotator cuff tendon tears due to injury, which is often the result of a sporting activity or automobile accident, the shoulder’s function can be severely compromised. In some instances, a rotator cuff tear can be deemed “irreparable” due to a traumatic event, leading to a complete loss of function and the inability to properly use the shoulder joint. The four muscle-tendon units of the rotator cuff are the subscapularis, supraspinatus, infraspinatus, and teres minor, which work together to maintain the head of the humerus in a stable position within the shallow socket of the glenoid. A tear in one of these tendons from its attachment site can cause pain and restrict joint function.
How To Fix An “Irreparable” Rotator Cuff Tear?
An “irreparable” rotator cuff tear refers to a tear that cannot be fully repaired and restored to its original attachment site. This type of tear is often accompanied by muscle atrophy and stiffness, which can limit joint function and cause pain. In cases where traditional rotator cuff repair procedures are not effective, Dr. Nawaid Ahmed may recommend a newer surgical technique called Superior Capsular Reconstruction (SCR).
SCR involves the reconstruction of the shoulder joint’s superior capsule, which is the upper portion of the joint’s capsular lining, using a thick dermal patch. The procedure is performed arthroscopically, with the dermal patch being inserted into the shoulder joint and attached to the head of the humerus and the top of the glenoid, as well as to the front and back of the rotator cuff tendons. This technique has been shown to significantly improve pain and function in patients with an “irreparable” rotator cuff tear.