Curative efficacy of unstable distal radius fracture treated by anatomic volar locking plate

Objective To evaluate the radiologic and functional outcomes of internal fixation for unstable distal radius fractures with anatomic volar locking plate. Methods From July 2010 to June 2012, 67 patients underwent open reduction and internal fixation with anatomic volar locking plate. These comminuted distal radius fractures included 11 type A3, 4 type B2, 2 type B3, 15 type C1, 23 type C2, and 12 type C3, according to the AO/ASIF classification. Fracture reduction and wrist joint function were assessed by Sarmiento criteria modified by Stewart and Dienst scale at 6 months after operation. Results All patients were followed up for (12.6±3.2) months (range, 6-18 months). X-ray showed that all fractures were healed after (8.7±2.4) weeks. The average height of radial malleolus was (10.3±2.1) mm, the volar inclined angel was (8.5±4.2)°, and the ulnar deviation was (21.1±4.9)° at 6 months after surgery. The results were excellent and good in 64 patients (95.5%) by Sarmiento criteria and in 62 patients (92.5%) by Dienst scale for wrist joint function. Conclusion Open reduction and internal fixation with anatomic volar locking plate is an effective method for unstable distal radius fractures.