| Colton Classification of Olecranon Fractures | ||
| Nondisplaced or displacement less than 2 mm |
Displacement does not increase with elbow flexion Elbow extensor mechanism remains intact |
|
| Displaced | A | Avulsion Fractures |
| B | Oblique or Transverse Fractures | |
| C | Comminuted | |
| D | Fracture Dislocations | |