Surgical Management Of Supraspinatus And Infraspinatus Rotator Cuff Tears - pediagenosis
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Thursday, May 30, 2019

Surgical Management Of Supraspinatus And Infraspinatus Rotator Cuff Tears

Surgical Management Of Supraspinatus And Infraspinatus Rotator Cuff Tears
Most rotator cuff tears occur by avulsion of the tendon from the tuberosity. In some cases there is a remnant of tissue that remains on the tuberosity. This tissue is often very degenerative and of poor quality and cannot be used to repair the tendon. This tissue, if it is present at the time of surgery, is removed to create a fresh bone bed for the reattachment of the rotator cuff tendon. The principles of surgical repair are the same if the surgery is performed by traditional open surgery or arthroscopic surgery. 

In most cases, primary repair (first-time surgery) is performed by arthroscopic tech- nique because it is less invasive by not having to make a major incision or detach any portion of the deltoid muscle. As a result, the surgery is less painful, there is less tissue damage, and therefore there is no risk for damage to the deltoid or need to repair the deltoid and there is less risk of infection or postoperative shoulder stiffness. The view of the damage and tissues is better with arthroscopic surgery. Open surgery in most cases is now reserved for more complex rotator cuff reconstruction in patients with massive chronic tears who may benefit from muscle transfer surgery or augmentation with tissue grafts.

Surgical Management Of Supraspinatus And Infraspinatus Rotator Cuff Tears

The principles of primary rotator cuff repair include mobilization of the tendon to remove scar tissue and any contracture of the capsule so that the tendon can be pulled laterally from its retracted  position to the prepared bed of the tuberosity. Sutures are passed either through the tendon using suture anchors or through tunnels made through the bone through which the sutures in the tendon are passed and then tied over a bone bridge. When suture anchors are used, they are placed directly into the tuberosity bone and the sutures are then passed through the tendon. In either case, when the sutures are tied, the tendon edge is placed in direct approximation to the tuberosity. An anatomic repair places the tendon back to the bone to cover the entire original footprint of the tendon to bone. In many cases there are splits in the tendon in the mediolateral direction such that sutures are also placed in the sides of the tear, thus effecting a tendon-to-tendon repair.
Protection of the repair after surgery avoids active motion of the shoulder, specifically any lifting, reaching, pushing, or pulling for 6 to 12 weeks, depending on the size of the tear and the quality of the tissues and repair. During this time, there is protection of the shoulder in a sling or pillow brace to place the shoulder in approximately 20 degrees of abduction. This position takes some tension off of the repair site. Postoperative shoulder stiffness (frozen shoulder) is minimized by close postoperative evaluation of shoulder motion by the surgeon or other health care provider over the first 2 months after surgery. Starting with passive range of motion during the first 6 to 8 weeks from surgery, therapy is individualized based on the size of the tear, quality of the tissues and repair, and amount of stiffness that occurred over the first few weeks after surgery.

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