We present the clinical results of a study of chronic dynamic scapholunate (SL) dissociation treated by reconstruction of the dorsal SL ligament. A total of 35 patients who presented with chronic dynamic SL instability had the scapholunate ligament reconstructed with a tendon graft. Twenty-nine patients were available for follow-up evaluation after a minimal interval of 17 months (range 17-72). Patients' satisfaction was good in 26/29 patients. Postoperative range of movement was reduced in extension and improved for flexion and ulnar deviation. Mean wrist movements were 75% of those on the opposite side. Most patients had good pain relief and recovered their grip strength, and returned to their regular employment. Follow-up stress radiographs showed a reduction in the SL angle and gap. Reconstruction of the dorsal SL ligament provides sufficient restoration of stability, pain relief, and functional improvement of the wrist for patients with dynamic SL instability. Although the short-term results are encouraging, we think that this method should be verified by longer follow-up.

Department of Trauma Surgery University Hospital Olomouc Olomouc Czech Republic

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