An In Vitro Biomechanical Investigation of the Mechanical Properties of Dynamic Compression Plated Osteotomized Adult Equine Tibiae

Objective— To determine the monotonic mechanical properties of osteotomized adult equine tibiae stabilized with two dynamic compression plates (DCP) and to compare the mechanical properties with those of intact tibiae and in vivo loads. Study Design— The compressive, bending, and torsional mechanical properties of plated and intact tibiae were assessed in vitro. Animals or Sample Population— Twelve pairs of adult equine tibiae. Methods— Tibiae were loaded in axial compression, craniocaudal 3‐point bending, or torsion in external rotation in a single cycle to failure. Mechanical properties were determined from load‐displacement data. Results— Compared to intact tibiae, the mean yield load, failure load and stiffness of plated tibiae were significantly lower (P