Colles Fracture- Frykman Classification

Fracture Distal Ulnar Fracture:
Absent Present
Extra articular I II
Intra articular involving radiocarpal joint III IV
Intra articular involving distal RU joint V VI
Intra articular involving both radiocarpal & VI VIII
distal radioulnar joints

- Discussion:
- Frykman classification considers involvement of radiocarpal & RU joint,
in addition to presnce or absence of frx of ulnar styloid process;
- classification does not include extent or direction of initial displacement,
dorsal comminution, or shortening of the distal fragment;
- hence, it is less useful in evaluating outcome of treatment