Anterior ankle dislocation with associated trigonal process fracture. A

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case report and literature review. Segal-L-S. Lynch-C-J. Stauffer-E-S. Division of Orthopaedics and Rehabilitation, Southern Illinois University School of Medicine, Springfield. Clin-Orthop [m. 1992 [1mMay [m. (278). P 171-6. Anterior ankle dislocations without concomitant malleolar fractures are rare injuries. Review of the English-language literature disclosed only three previously reported cases. A 21-year-old man sustained an isolated anterior ankle dislocation with an associated fracture of the trigonal process, which was reduced without difficulty. At follow-up examination 33 months later, the patient's major complaint was chronic, posttraumatic peroneal tendon dislocation. The proposed mechanism of injury suggested in this case is forced plantar flexion. Author-abstract.