Abstract
Distal elbow fractures tend to involve poor bone quality and are intra-articular, compromising stability. Locking plate and screw constructs have higher pull-out strength which is instrumental in repairing osteoporotic bone or comminuted fractures; however, the screw insertion angle is fixed relative to the plate. To address the limitation of monoaxial locking plates, polyaxial plates have allowed surgeons greater freedom in screw angulation to accommodate complex fractures. The objective of this study was to evaluate the effect of screw angle insertion on the screw-plate fixation strength of polyaxial locking plates. We hypothesized the angle of insertion of the locking screw is inversely proportional to the fixation strength of the locking mechanism.
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