Posterior compartment fractures of the ankle

Abstract

This paper brings to the reader's attention an injury and symptom complex resulting from an ankle sprain during athletic competition. Twenty patients were re viewed and followed over a 3½ year period of time. Three patients presented acutely and 17 patients pre sented after an extended period of time with residual ankle morbidity. Common to this group of patients was a history of having sustained an ankle sprain, most commonly secondary to a forced plantar flexion type injury. Subsequent disability was generally posterior and postero-lateral ankle pain associated with running and/or jumping. Clinical examination invariably demon strated posterior ankle pain, particularly with forced plantar flexion of the foot. All patients demonstrated bony changes in the area of the posterior talus and/or tibia by x-ray, and all patients had a positive technicium bone scan of the posterior ankle area.

If the injury is diagnosed acutely, cast immobilization is the treatment of choice. If diagnosed late, it is sug gested that for those patients who fail conservative treatment, surgical removal of the fragment is best. The majority of patients in this study required surgical extir pation of the posterior talus bony fragment in order to relieve symptoms and return to full sports competition.