Classification

General Principles

1 – Humerus


2 – Radius/Ulna


3 – Femur


4 – Tibia/Fibula


-1,2,3 = Proximal, diaphysis, distal

Diaphysis/Epiphysis


A – Simple extra-articicular (1-spiral, 2-oblique, 3-transverse)


B – Segmental partial-articular


C – Comminuted articular

Explanation

The AO group has developed a comprehensive classification of fractures. This classification is arranged in order of increasing severity according to the complexities of the fracture, difficulty of treatment, and worsening prognosis.

Figures

Insert figures illustrating the classification

Reference(s)

Provide the citation for the landmark article and recent review articles describing the classification