Score: Malone classification

Use: Intra-articular distal radius injuries

Type I

Undisplaced fracture with minimal comminution

Type II

"Die punch" fracture with moderate to severe displacement
  • Type IIa: Reducible (closed)
  • Type IIb: Irreducible (requires an open reduction)
  • Type III

    A spike fragment is present. Requires closed or limited open reduction. Associated nerve or tendon injury common.

    Type IV

    Wide separation of the intra-articular fragments. Open reduction is always necessary.

    Type V

    Explosion fracture with severe comminution, transverse split and rotational displacement

    Reference

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