Types of intra-articular metacarpal head fractures
| Type | No. fractures |
|---|---|
| Epiphyseal injuries | 4 |
| Collateral ligament avulsions | 17 |
| Osteochondral | 8 |
| Oblique (sagittal) | 22 |
| Vertical (coronal) | 4 |
| Horizontal (transverse) | 4 |
| Comminuted | 31 |
| Boxer’s into joint | 3 |
| Loss of substance | 6 |
| Avascular necrosis | 4 |
| Total | 103 |
Adapted from McElfresh EC, Dobyns JH. Intra-articular metacarpal head fractures. J Hand Surg (Am) 1983;8:384. (2)