Presentation
Hand trauma.
Patient Data
Age: 15 years
Gender: Male
From the case:
Epibasal thumb fracture
{"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/115608/annotated_viewer_json?iframe=true\u0026lang=us"}
Fracture of base of the first metacarpal bone with mild displacement and without intra-articular extension.
Case Discussion
Epibasal fractures of the thumb (also called pseudo-Bennett fracture) are extra-articular two-piece fractures of the proximal first metacarpal bone. They are usually stable, depending on the degree of displacement, and often do not require surgery. It is important to distinguish them from intra-articular fractures (e.g. Bennett fracture-dislocation or Rolando fracture), which are usually unstable and require surgery.