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Anatomy (TOPNOTCH SUPPLEMENT) > Clavicle > Flashcards

Flashcards in Clavicle Deck (11):
0

First bone to begin ossification during fetal development

Last one to complete ossification at about age 21

Medial 2/3 convex forward; lateral 1/3 flattened

JUNCTION - WEAKEST POINT

Clavicle

1

Fall on the shoulder or outstretched hand

MEDIAL segment elevated by the pull of SCM

LATERAL segment displaced downward by gravity and pull of DELTOID

cause BRACHIAL PLEXUS INJURY/LOWER TRUNK

HEMORRHAGE from SUBCLAVIAN VEIN

Fracture of the CLAVICLE

2

A SUPRACONDYLAR fracture of the humerus would most likely cause injury to what nerve?

MEDIAN NERVE

3

AXILLARY NERVE may be affected and the Posterior Circumflex artery may be lacerated

SURGICAL NECK HUMERAL FRACTURE

4

RADIAL NERVE may be affected and the Profunda brachial artery may be lacerated

MIDSHAFT/SPIRAL HUMERAL FRACTURE

5

MEDIAN NERVE may be affected; contractions of Triceps and Brachialis may shorten the arm

SUPRACONDYLAR fracture

6

ULNAR NERVE may be affected

MEDIAL EPICONDYLE HUMERAL fracture

7

Fracture lower end of RADIUS

Displacement of the distal segment POSTERIORLY and SUPERIORLY

DINNER/SILVER FORK DEFORMITY

8

Fracture lower end of RADIUS

Displacement - ANTERIORLY

SMITH'S FRACTURE

9

Fracture of DISTAL end of RADIUS

Fragment dorsally placed

COLLE'S FRACTURE

10

Fracture of DISTAL end of RADIUS

Fragment VENTRALLY placed

SMITH'S FRACTURE