Craig classified a fracture of the clavicle depending on its location.
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 |
Specialty: Surgery, orthopedic, Emergency Medicine, Critical Care, Surgery, general