A Colles Fracture primarily involves which bone?

A Colles Fracture primarily involves which bone?

• A. Ulna
• B. Radius
• C. Tibia
• D. Fibula

Answer: (B)

A Colles fracture specifically refers to a fracture of the distal radius, which is located near the wrist. This type of fracture typically occurs when an individual falls onto an outstretched hand, causing the radius to break just above the wrist joint. The defining characteristic of a Colles fracture is the dorsal angulation and often dorsal (posterior) displacement of the distal fragment, meaning that the fractured end of the radius shifts towards the back of the hand. Understanding the anatomy involved in a Colles fracture is crucial for diagnosis and appropriate management. The radius is the key bone affected, whereas the ulna, tibia, and fibula pertain to different areas of the body or are not typically involved in this specific type of injury. The nature of the trauma and the typical presentation help differentiate a Colles fracture from other types of wrist fractures that may involve the ulna or the carpals.

A Colles fracture specifically refers to a fracture of the distal radius, which is located near the wrist. This type of fracture typically occurs when an individual falls onto an outstretched hand, causing the radius to break just above the wrist joint. The defining characteristic of a Colles fracture is the dorsal angulation and often dorsal (posterior) displacement of the distal fragment, meaning that the fractured end of the radius shifts towards the back of the hand.

Understanding the anatomy involved in a Colles fracture is crucial for diagnosis and appropriate management. The radius is the key bone affected, whereas the ulna, tibia, and fibula pertain to different areas of the body or are not typically involved in this specific type of injury. The nature of the trauma and the typical presentation help differentiate a Colles fracture from other types of wrist fractures that may involve the ulna or the carpals.