Which bone is fractured in Colles fracture?

Which bone is fractured in Colles fracture?

• A. Scaphoid
• B. Ulna
• C. Distal radius
• D. Proximal radius

Answer: (C)

Colles fracture is a break at the distal end of the radius just above the wrist, typically with the distal fragment displaced dorsally after a fall on an outstretched hand. That distal radius involvement is what defines this injury, giving the classic dinner‑fork deformity. The scaphoid is a carpal bone and fractures there are a different pattern with often localized snuffbox tenderness; an ulna fracture or a fracture higher up the radius involves other forearm regions, not the distal radius seen in Colles. So the bone involved is the distal radius.

Colles fracture is a break at the distal end of the radius just above the wrist, typically with the distal fragment displaced dorsally after a fall on an outstretched hand. That distal radius involvement is what defines this injury, giving the classic dinner‑fork deformity. The scaphoid is a carpal bone and fractures there are a different pattern with often localized snuffbox tenderness; an ulna fracture or a fracture higher up the radius involves other forearm regions, not the distal radius seen in Colles. So the bone involved is the distal radius.