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Clavicle Fracture Overview

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Questions and Answers

What is the most frequent mechanism of clavicle fracture?

Direct blow to the clavicle

Indirect force from an outstretched hand (correct)

Sudden forceful contraction of the trapezius muscle

Twisting injury to the shoulder

Where is the clavicle most likely to fracture?

Junction of medial 2/3 and lateral 1/3 (correct)

Lateral end

Medial end

Junction of medial 1/3 and lateral 2/3

Following a clavicle fracture, how does the medial fragment typically displace?

Downwards and medially

Laterally

Anteriorly and inferiorly

Upwards (correct)

What causes the downward displacement of the lateral fragment in a clavicle fracture?

<p>Weight of the upper limb (B)</p> Signup and view all the answers

Which major vessel is most at risk of injury in a clavicle fracture?

<p>Subclavian vein (B)</p> Signup and view all the answers

Study Notes

Clavicle Fracture

Commonly caused by indirect force from outstretched hand.
Weakest point is the junction of the medial two-thirds and lateral one-third.
Clinical features:
- Medial fragment displaced upward due to sternocleidomastoid (SCM) muscle pull.
- Lateral fragment displaced downward due to upper limb weight.
- Upper limb remains adducted.
Most significant complication is subclavian vein injury.

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Description

This quiz covers the essential aspects of clavicle fractures, including their common causes, clinical features, and potential complications. You'll learn about the mechanics of injury and how the anatomy influences displacement. Test your knowledge on this important topic in orthopedics.