Biomechanical Comparison of Dorsal Wrist Spanning Plates Versus External Fixation in Distal Radius Fractures With a Simultaneous Axial and Bending Load.

ABSTRACT:

Introduction

External fixators have traditionally been used for comminuted distal radius fractures not amenable to plate fixation but are associated with complications. Dorsal spanning plates have emerged as an alternative. Prior biomechanical studies comparing these constructs typically assess forces in a single vector. This study compares dorsal spanning plates and external fixators under combined axial loading with simultaneous flexion, extension, radial, and ulnar bending to better replicate physiologic wrist forces.

Methods

24 identical laser-sintered bone models were created, with 12 assigned to the dorsal spanning plate group and 12 to the external fixator group. Constructs were tested using a servohydraulic test machine under combined axial and bending loads. Stiffne

SUBMITTER: Ghilzai U 

PROVIDER: S-EPMC12534833 | biostudies-literature | 2025 Oct

REPOSITORIES: biostudies-literature