A Colles fracture involves which bone?

Prepare for the California Self‑Insurance Plans (SIP) Exam with our interactive quiz. Benefit from multiple-choice questions, detailed explanations, and essential tips to enhance your knowledge and succeed in your exam!

Multiple Choice

A Colles fracture involves which bone?

Explanation:
A Colles fracture is a distal radius fracture of the forearm, usually with the distal fragment displaced dorsally after a fall on an outstretched hand. The radius is the bone involved in this classic wrist injury, which is why it’s the correct answer. The ulna is the other forearm bone and can be nearby in injuries, but Colles specifically refers to the radius at the distal end near the wrist. The tibia and fibula are in the leg and are not related to this wrist fracture.

A Colles fracture is a distal radius fracture of the forearm, usually with the distal fragment displaced dorsally after a fall on an outstretched hand. The radius is the bone involved in this classic wrist injury, which is why it’s the correct answer. The ulna is the other forearm bone and can be nearby in injuries, but Colles specifically refers to the radius at the distal end near the wrist. The tibia and fibula are in the leg and are not related to this wrist fracture.

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