Classification of Craig for Fractures of the Clavicle

Location

Group

middle third

I

distal third

II

proximal third

III

Subclassification of Group II

Type

minimal displacement (interligamentous)

I

displacement secondary to fracture medial to the coracoclavicular ligaments

II (see below)

articular surface fractures

III

ligaments intact to periosteum (children) with displacement of the proximal fragment

IV

comminuted, with no ligamentous attachment proximally nor distally but to an inferior, comminuted fragment

V

Subclassification of Group II, Type II

Subtype

conoid and trapezoid attached

IIA

conoid torn, trapezoid attached

IIB

Subclassification of Group III

Type

minimal displacement

I

significant displacement (ruptured ligaments)

II

intra-articular

III

epiphyseal separation in children or young adults

IV

comminuted fracture

V