Green and O'Brien classification of thumb metacarpal fractures
Diagnosis not applicable
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Illustration of the Green and O'Brien classification system of thumb metacarpal fractures.
Case Discussion
Green and O'Brien classification is used to classify thumb metacarpal fractures. It is of note that some types coincide with famous eponyms of thumb metacarpal fractures. The classification:
- type I: simple intra-articular (Bennett fracture)
- type II: comminuted intra-articular (Rolando fracture)
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type III: extra-articular, epibasal (pseudo-Bennett fracture)
- type IIIA: transverse
- type IIIB: oblique
- type IV: epiphyseal fracture