Green and O'Brien classification of thumb metacarpal fractures

Last revised by Daniel J Bell on 3 Apr 2023

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 well-known eponymous fractures, the system itself is not usually used properly, giving preference to naming the types as the eponymous fractures themselves.

Classification

See also

ADVERTISEMENT: Supporters see fewer/no ads

Cases and figures

  • Figure 1: classification
    Drag here to reorder.
  • Figure 2: common eponymous fractures
    Drag here to reorder.
  • Figure 3: Type I
    Drag here to reorder.
  • Case 1: type I (Bennett fracture)
    Drag here to reorder.
  • Figure 4: type II
    Drag here to reorder.
  • Case 2: type II (Rolando fracture)
    Drag here to reorder.
  • Figure 5: type IIIA
    Drag here to reorder.
  • Case 3: type IIIA (pseudo-Bennett fracture)
    Drag here to reorder.
  • Figure 6: type IIIB
    Drag here to reorder.
  • Case 3: type IIIB (pseudo-Bennett fracture)
    Drag here to reorder.
  • Figure 7: type IV
    Drag here to reorder.
  • Case 4: type IV
    Drag here to reorder.
  • Updating… Please wait.

     Unable to process the form. Check for errors and try again.

     Thank you for updating your details.