From the case:
Calcaneal fracture - Sander's type 2a
{"current_user":null,"step_through_annotations":true,"access":{"can_edit":false,"can_download":true,"can_toggle_annotations":true,"can_feature":false,"can_examine_pipeline_reports":false,"can_pin":false},"extraPropsURL":"/studies/27206/annotated_viewer_json?lang=us"}
The primary fracture line involves the lateral aspect of the posterior facet of the calcaneus.
Case Discussion
The primary fracture line involves the lateral aspect of the posterior facet of the calcaneus, making this a Sander's type 2a fracture.