Persistent diastasis in a Maisonneuve fracture--interposition of a tibial osteochondral fragment: a case report.

We report a case of failed reduction of the distal tibiofibular syndesmosis following a Maisonneuve fracture due to interposition of an osteochondral fragment in the syndesmosis from the tibial plafond. The displaced fragment was not initially appreciated. It is suggested that surgeons consider this as a possible cause of an incompletely reduced diastasis after deltoid ligament interposition has been excluded.