Score: Green-O'Brien classification

Use: First metacarpal fractures

Type I

Bennet's fracture (intra-articular fracture at the base)

Type II

Rolando's fracture (comminution at the base)

Type III

  • IIIA: transverse extra-articular
  • IIIB: oblique extra-articular
  • Type IV

    Type II Salter Harris epiphyseal fracture (paediatric)

    Reference

    Classification and Diagnosis in Orthopaedic Trauma. Editors: Rahij Anwar, Kenneth W. R. Tuson, Shah Alam Khan. Cambridge University Press, 2008