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Journal of the Korean Society for Surgery of the Hand 2011;16(3):127-133.
Published online September 30, 2011.
Trans-scaphoid Perilunate Fracture Dislocations: Screw Fixation of the Scaphoid and Lunotriquetral Ligament Repair Using a Dorsal Approach
Chang Ho Yi, Jin Rok Oh
Department of Orthopedic Surgery, Yonsei University Wonju College of Medicine, Wonju, Korea. jroh@yonsei.ac.kr
Received: 14 April 2011   • Revised: 10 August 2011   • Accepted: 13 August 2011
Abstract
Purpose
To evaluate clinical and radiological results after screw fixation of the scaphoid and lunotriquetral ligament repair using a dorsal approach in the treatement of trans-scaphoid perilunate fracture dislocations. MATERIALS AND METHODS: From May 2003 to August 2007, 11 patients who underwent operative management of a trans-scaphoid perilunate fracture dislocation were included in this study. Average follow up period was 58 months. In all patients, screw fixation of the scaphoid and lunotriquetral ligament repair with a suture anchor after open reduction was performed. Clinical evaluation was done by measuring range of motion and grip power and disabilities of arm, shoulder and hand (DASH) score evaluation for functional recovery at the last follow up. Union of scaphoid, change in lunotriquetral distance, and development of any instability and arthritis of wrist joint were radiographically assessed.

Results
In clinical outcomes, 89.3% recovery of grip power and 87.5% recovery of range of motion compared to healthy side were observed at the last follow-up. Average range of motions of extension, flexion, ulnar deviation, radial deviation, supination and pronation were 51.8degrees, 58.4degrees, 21.2degrees, 16.2degrees, 74.3degrees, 75.1degrees respectively. Average DASH score was 13.2. Bony union of scaphoid was achieved in all cases at the average of postoperative 19.3 weeks. Lunotriquetral distance after the operation and at the last follow up were 1.9 mm and 2.0 mm, respectively. There were no radiographic evidence of instability or arthritis.

Conclusion
Dorsal approach allows reduction of carpal bone, scaphoid fixation and lunotriquetral ligament repair in the treatment of trans-scaphoid perilunate fracture dislocations, providing satisfactory clinical and radiological results.
 


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