Carpal fractures

Background

Carpal bones

Zone of Vulnerability

• Scaphoid fractures account for 70% of all carpal fractures
• Ulnar nerve damage associated with fractures of hamate or pisiform
• 50% of pisiform fracture associated with injury to distal radius or other carpal bone
• If bone fragment seen posterior to carpus on lateral, very likely triquetrum fracture

Fracture Types

Carpal fractures

thumb|AP view

• Scaphoid fracture
• Lunate fracture
• Triquetrum fracture
• Pisiform fracture
• Trapezium fracture
• Trapezoid fracture
• Capitate fracture
• Hamate fracture

Diagnosis

AP view

Lateral view

• Evaluate Zone of Vulnerability

See Also

• Fracture (Main)
• Carpal dislocations

Video

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