Houston Methodist. Leading Medicine

Shoulder FAQ

Question:

My husband was in a bad motorcycle wreck and nearly destroyed his left shoulder. After four or five surgeries the doctors have decided to fuse the shoulder joint. What kind of problems could he run into with a shoulder fusion?

Answer:

Modern fusion methods have improved the results quite a bit. Nonunion is still a problem for about 10 percent of the patients. The bone simply doesn't fuse completely. Most nonunions are painful. Another operation may be needed to use bone graft to get a solid fusion.

Getting the right position can be a problem. The shoulder must be fused in a position that allows the patient some motion. Not enough flexion may keep the patient from reaching the face to wash or brush teeth. There needs to be the right combination of flexion, rotation, and abduction (moving the arm away from the body).

Sometimes there are problems where the metal plates and screws on the inside rub against bone or soft tissue. The fixation devices can even poke through the skin. If the fusion is solid then part or all of the hardware can be removed.

The last problem is fracture. Without motion the bones around the shoulder start to lose density or mass. This weakens the bone so that even minor trauma can cause a fracture.

All in all shoulder fusion called arthrodesis works well for many patients. It stabilizes the arm and reduces painful symptoms. There's still enough motion to allow for daily activities of care.

Ori Safran, MD, and Joseph P. Iannotti, MD, PhD. Arthrodesis of the Shoulder. In Journal of the American Academy of Orthopaedic Surgeons. March 2006. Vol. 14. No. 3. Pp. 145-153.

*Disclaimer:* The information contained herein is compiled from a variety of sources. It may not be complete or timely. It does not cover all diseases, physical conditions, ailments or treatments. The information should NOT be used in place of visit with your healthcare provider, nor should you disregard the advice of your health care provider because of any information you read in this topic.
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