A Biomechanical Comparison Between Two Volar Locking Plate Systems for Distal Radius Fractures

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The biomechanical properties of two distal radius volar locking plate systems were investigated. A cadaveric model simulating distal radius fractures with dorsal comminution was selected. The biomechanical properties of fracture fixation using the Synthes volar lockingT-plate and the Hand Innovation DVR plate were characterized. The average stiffness was 137.1 ±19.9 N/mm for the DVR group and 11 9.1 ±9.9 N/mm for the Synthes group (P =.49), and the average changes of the opening angle describing plastic deformation were 10.1°±4.0° and 8.6°±3.2°, respectively (P =.23). This study demonstrates that both the Synthes T-plate and Hand Innovations DVR plate fixation systems show comparable biomechanical characteristics.

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