Green and O'Brien classification of thumb metacarpal fractures

Last revised by Leonardo Lustosa on 04 Apr 2022

The Green and O'Brien classification of thumb metacarpal fractures is a commonly used classification system when assessing thumb metacarpal fractures.

However, since most types of fractures coincide with famous eponymous fractures, the system itself isn't usually used properly, giving preference to naming the types as the eponymous fractures themselves.

Classification

See also

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Cases and figures

  • Figure 1: classification
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  • Figure 2: common eponymous fractures
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  • Figure 3: Type I
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  • Case 1: type I (Bennett fracture)
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  • Figure 4: type II
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  • Case 2: type II (Rolando fracture)
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  • Figure 5: type IIIA
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  • Case 3: type IIIA (pseudo-Bennett fracture)
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  • Figure 6: type IIIB
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  • Case 3: type IIIB (pseudo-Bennett fracture)
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  • Figure 7: type IV
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  • Case 4: type IV
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