This study compared the Arciero and LaPrade techniques for reconstructing the posterolateral corner of the knee through biomechanical testing on 10 cadaver specimens. The specimens underwent mechanical testing to measure varus angulation and external rotation at different degrees of flexion before and after reconstructing the posterolateral corner with either the Arciero or LaPrade technique. Statistical analysis found no significant differences between the techniques in restoring knee stability following reconstruction of an isolated posterolateral corner injury or combined posterolateral corner and tibiofibular injury. Therefore, the study concludes that surgeons can select either technique without concern for varying surgical outcomes.