Subtalar fusion and exostectomy in calcaneus malunion: How we do it.

Calcaneus malunion is a common sequela to calcaneal fractures and is a cause of pain and discomfort. Multiple approaches have been described to address the subtalar joint and the lateral wall. Type 2 malunion is the most commonly encountered problem, and is usually addressed by the sinus tarsi approach. This has some limitations, as exposure for lateral wall excision beneath the peroneal tendons maybe a problem. We have slightly modified the sinus tarsi approach by a more horizontal skin incision, which may even be extended proximally by 1-2 cm; this allows access to the lateral wall on either side of the peroneal tendons. The approach is described in detail.