Carpal fractures

Background

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

Fracture Types

Carpal fractures

AP view

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

Diagnosis

Carpal bones

AP view

Lateral view

Zone of Vulnerability

• Evaluate Zone of Vulnerability

Source

• UpToDate
• Accident & Emergency Radiology
• Tintinalli

See Also

• Wrist Bones
• Fracture (Main)
• Carpal dislocations