Treatment of static scapholunate dissociation using a slip of the flexor carpi radialis

The purpose of this paper is to examine the results of reconstruction of the dorsal and palmar limbs of the scapholunate interosseous ligament in flexible static scapholunate instability using a slip of flexor carpi radialis tendon. Between June 2012 and August 2018, 13 patients with flexible static scapholunate instability underwent with this surgical technique. Mean patient age at surgery was 42 years. Average follow-up was 52, 8 months. The functional outcome postoperative according to Green and O'Brien was excellent in 1, good in 9 and regular in 3 patients. Postoperative disabilities of the arm, shoulder and hand and modified Mayo scores averaged were 9.02 and 80, respectively. At final follow-up, the radiographic findings demonstrated a significant decrease in scapholunate gap from 5 mm to 2, 5 mm and a significant improvement in scapholunate angle from 65° to 50°. Of the 13 patients, 10 were pain free and 3 had mild pain. Given the small number of cases, few conclusions can be drawn. However, results may be regarded as promising for this technique.