抄録
Isolated rupture of the long head tendon of biceps brachii was generally treated conservatively. However, surgical treatment may be necessary for manual laborers or patients whose pains were not improved. We operated on 7 patients and examined their clinical symptoms, arthroscopic findings and outcomes of surgical treatment. The 7 patients were all males. Their occupations were 1 was a policeman, 2 were farmers, and 2 were manual laborers. Their mean age was 50 years old. We examined clinical symptoms, site of tendon rupture, surgical method, muscle strength of elbow flexion and JOA score. Muscle strength was measured by a handheld dynamometer (MicroFET®). We compared preoperative ratio of affected side to unaffected side with the postoperative. The mean of follow-up period was 10.4 months. Before operation, all patients had pain in the upper arm or shoulder. Speed test was positive in 6 patients and Yergason test was in 3 patients. The site of tendon rupture was all near to tendon-labrum junction. The surgical methods were tenodesis at the bicipital groove in 6 patients and sutures to the short head tendon of biceps brachii in 1. After the operation, 1 had mild pain but 6 patients had no pain. Deformity of muscle belly of biceps brachii was improved in all patients. 6 patients returned to their previous work. The strength of elbow flexion was improved from 71.1 % preoperatively to 97.1 % postoperatively. Surgical treatment was effective for improvement of pain, recovery of muscle strength of elbow flexion and cosmetically.
