“Tennis elbow” is an inflammation of the tendons joining forearm muscles to the elbow’s exterior. People who use their elbows repeatedly and vigorously may need this operation. Most patients are between ages 30 and 50. During the procedure, a surgeon removes damaged muscle and connects healthy muscle to the bone. Frequently, the operation requires a large incision. Therapy is critical to sound recovery. Fortunately, “tennis elbow” surgery enjoys a success rate of about 85 percent.