Mnemonic

舟月三角豆，大小头状钩

Scaphoid fracture

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Epidemiology

• Most common carpal bone fracture (50–80%)
• Peak incidence: 15–19 years

Clinical features

• History of falling onto the outstretched hand with a hyperextended and radially deviated wrist
• Pain when applying pressure to the anatomical snuffbox and scaphoid tubercle (a palpable bony prominence on the inferior lateral edge of the scaphoid bone)
• Painful pinching and grasping