Boxer's fracture involves fracture of which metacarpal?

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Prepare for the 450 Formula Upper Extremity Test. Study with interactive flashcards and comprehensive multiple choice questions, each offering detailed explanations. Get exam ready now!

Multiple Choice

Boxer's fracture involves fracture of which metacarpal?

Explanation:
Boxer's fracture is a break at the neck of the fifth metacarpal, the bone that leads to the little finger, typically occurring when a closed fist strikes a hard object. The force drives the neck of the fifth metacarpal to fracture, and the distal fragment often tilts toward the palm due to the pull of the hand’s flexor muscles, which is why you’ll see deformity around the little finger knuckle. This pattern is classic for a Boxer's fracture, whereas fractures of the other metacarpals arise from different mechanisms and are not described as Boxer's fractures.

Boxer's fracture is a break at the neck of the fifth metacarpal, the bone that leads to the little finger, typically occurring when a closed fist strikes a hard object. The force drives the neck of the fifth metacarpal to fracture, and the distal fragment often tilts toward the palm due to the pull of the hand’s flexor muscles, which is why you’ll see deformity around the little finger knuckle. This pattern is classic for a Boxer's fracture, whereas fractures of the other metacarpals arise from different mechanisms and are not described as Boxer's fractures.

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