Non-osseous extra-articular anterolateral talocalcaneal coalition: a case report

LB Solomon
Department of Orthopaedics, Royal Adelaide Hospital, Adelaide, SA, Australia

F Ruhli
Institute of Anatomy, University of Zurich, Zurich, Switzerland

L Ferris
Department of Orthopaedics, Modbury Hospital, Modbury, SA, Australia

J Taylor
Department of Radiology, Royal Adelaide Hospital, Adelaide, SA, Australia

M Henneberg
Department of Anatomical Sciences, University of Adelaide, Adelaide, SA, Australia

We report a case of an extra-articular talocalcaneal coalition located anterolateral to the sinus tarsi. As non-osseous coalitions can be difficult to diagnose, physicians should keep this variant in mind in cases of a symptomatic hind foot with apparently equivocal radiological findings.