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AC Joint Surgery New York City

Overview

The AC joint connects the collar bone (clavicle) to the shoulder blade (scapula). This joint can get injured in fall or forceful motion to the shoulder. Patients typically complain of pain on top of the shoulder and may notice a step-off where the injury occurred. The pain usually subsides in a few days but the deformity never goes away.

There are two ligaments which hold the collar bone to the shoulder blade. The AC ligament envelops the joint and prevent motion in the horizontal plane. The Coracoclavicular ligaments or the CC ligaments are vertical ligaments which prevent vertical translation of the AC joint. In a shoulder separation, one or both of the above ligaments may be injured. Treatment of a shoulder separation is based on the severity of injury.

 

Surgical Options

AC Joint Reconstruction

Options for treatment include placing the patient in a sling. This is usually utilized for mild cases in which the step-off in the joint is not so severe, and the CC ligaments are intact. The sling is usually used for a few weeks, which is followed by a course of physical therapy.

Surgery is reserved for the more severe shoulder separations. The surgery is an outpatient procedure which consists of a distal clavicle resection and a ligament reconstruction. During the distal clavicle resection, both ends of the AC joint are excised to allow the joint to move freely without friction. After this step is performed, a cadaveric tendon is used to reconstruct the torn ligaments to align the AC joint to its normal position. This involves making a small incision over the joint itself to allow the passage and reconstruction of the ligaments.

After surgery, a sling is placed for comfort and worn for about 4-6 weeks. Sutures are taken out one week after surgery. Physical therapy is carried out after to restore the shoulder motion and strength. Although the surgery will eliminate most of the visible bump seen on top of the shoulder, you may continue to see a small step-off between the collar bone and the shoulder blade.

Physical Therapy Protocols

Videos

Anatomy of the Shoulder as it relates to Surgery
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Animations