Presentation
Direct blow to the thumb at school. Subsequent tenderness at the thumb MCPJ with reduced range of motion.
Patient Data
Age: 30 years
Gender: Female
{"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/108099/annotated_viewer_json?lang=us"}
There is a fracture of the proximal pole of the thumb MCPJ radial sesamoid.
Case Discussion
Two sesamoids are commonly found in the distal portion of the thumb metacarpal, located within the tendons of adductor pollicis and flexor pollicis brevis.
The fractures of sesamoid bones of the hand are rare, sometimes the diagnosis is missed. The mechanism of injury is a sudden hyperextension of the joint. Sometimes it can be the result of a direct trauma.
Unable to process the form. Check for errors and try again.