ANTEROLATERAL SUBLUXATION OF THE TALUS AFTER OVERLOOKED DISLOCATION OF THE TIBIALIS POSTERIOR TENDON

We report a case of tibialis posterior tendon dislocation into the dis rupted ankle mortise between the tibia and fibula that was overlooked in the initial operative treatment of a fracture dislocation of the an kle with syndesmosis disruption. Recurrent widening of the ankle morti se prompted revision surgery where the posterior tibialis tendon dislo cation was discovered to be the cause of secondary joint subluxation. The course of the tendon was corrected and the anatomy of the joint re stored. One year after revision there is a good clinical result, howev er early posttraumatic osteoarthritis of the tibiotalar joint is seen radiologically.