Carpal Fractures
A 24-year-old man presents with wrist pain after a fall onto his outstretched hand while snowboarding 3 days ago. Clinical examination reveals tenderness in the anatomical snuffbox and pain on axial loading of the thumb. Initial radiographs are reported as normal. Regarding scaphoid anatomy and blood supply:
Mark each as TRUE or FALSE
The scaphoid is the most commonly fractured carpal bone (60-70% of carpal fractures); 80% of its sur...
The dorsal branch of the radial artery enters the scaphoid at the dorsal ridge and supplies 70-80% o...
The scaphoid lies entirely within the proximal carpal row; it articulates only with the radius, luna...
The scaphoid acts as a mechanical link between the proximal and distal carpal rows, stabilizing carp...
Clinical examination findings suggestive of scaphoid fracture include anatomical snuffbox tenderness...
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Click T (True) or F (False) for each option