No abstract

The volar locked fixed-angle plate maintained a greater percentage of its initial stiffness after cyclic loading compared to the dorsal nonlocked plate. Also, the volar locked plate was stiffer than the dorsal nonlocked plate for all loading configurations tested except when subjected to a dorsally applied eccentric load.

Double-plating provides a more rigid fixation than a single-locked plate for fixation of extra-articular comminuted distal humeral fractures. This could be clinically relevant in situations with 100% comminution as seen in gun shot injuries.

The two constructs showed equivalent rigidity and stability in all parameters assessed in elastic and cyclical tests. The TAN had a greater ultimate failure load.