Moteggia fracture - Bado classification of fractures of proximal ulna
Bado classification of Monteggia fractures divides fractures of proximal ulna with accompanying dislocation of radial head into four types. Radial head usually dislocates in the same direction as the distal ulnar fragment.
| Type | Subtype |
|---|---|
| I - Extension type | distal ulnar fragment is displaced anteriorly (extends) and radial head is dislocated anteriorly |
| II - Flexion type | distal ulnar fragment is displaced posteriorly (flexes) and radial head is dislocated posteriorly |
| III - Lateral type | distal ulnar fragment is displaced laterally and radial head is dislocated laterally |
| IV - Combined type | both ulna and radius are fractured, radial head is dislocated usually anteriorly |
References:
1. Bado JL. The Monteggia lesion. Clin Orthop Relat Res. 1967 Feb;50:71–86.
2. Konrad GG, Kundel K, Kreuz PC, Oberst M, Sudkamp NP. Monteggia fractures in adults: long-term results and prognostic factors. J Bone Joint Surg Br. 2007 Mar;89(3):354–60.
Updated 8/11/2013 22:21 by Lambert