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Shoulder Separation
Comprehensive care for you
Shoulder separation is not truly an injury to the shoulder joint.
The injury actually involves the acromioclavicular joint (also called the AC joint). The AC joint is where the collarbone (clavicle) meets the highest point of the shoulder blade (acromion).
Causes of Shoulder separation
The most common cause for a separation of the AC joint is from a fall directly onto the shoulder.If the force is severe enough, the ligaments attaching to the underside of the clavicle are torn. This causes the separation of the collarbone and the shoulder blade and further creates a bump or bulge above the shoulder.
The injury can range from a mild sprain without a bump to a complete disruption with a very large bump. Good pain-free function often returns even with a very large bump. The greater the deformity, the longer it takes for pain-free function to return.
Types of shoulder separation
A mild shoulder separation involves a sprain of the AC ligament that does not move the collarbone and looks normal on X-rays.
A more serious injury tears the AC ligament and sprains or slightly tears the coracoclavicular (CC) ligament, putting the collarbone out of alignment to some extent with a smaller bump.
The most severe shoulder separation completely tears both the AC and CC ligaments and puts the AC joint noticeably out of position, with a larger bump.
Treatment of shoulder Separation
Nonsurgical treatments, such as a sling, cold packs, and medications can often help manage the pain. Rarely, a doctor may use more complicated supports to help lessen AC joint motion and pain.
Most people return to near full function with this injury, even if there is a persistent, significant deformity/bump. Some people have continued pain in the area of the AC joint, even with only a mild deformity. This may be due to:
- Abnormal contact between the bone ends when the joint is in motion
- Development of arthritis
- Injury to a disk-like piece of cushioning cartilage that is often found between the bone ends of this joint
It is often worthwhile to wait and see if reasonable function returns without surgical treatment. Most patients, even with very severe injuries, are often managed effectively without surgery.
You are in Great Hands
Surgical Treatment of Separated shoulder
Surgery can be considered if pain persists or the deformity is severe. A surgeon might recommend trimming back the end of the collarbone so that it does not rub against the shoulder blade bone (acromion).Where there is significant deformity, reconstructing the ligaments that attach to the underside of the collarbone is helpful. This type of surgery works well even if it is done long after the problem started.
These operations can be done arthroscopically or open, with a plate or without. Sometimes, if a plate is used to assist with the surgery, it is usually removed after healing of the shoulder separation.
Whether treated conservatively or with surgery, shoulder separation will require rehabilitation to restore and rebuild motion, strength, and flexibility.
