Posterior interosseous nerve is injured in
B i.e. Montegia fracture dislocation Monteggia Fracture Dislocation Fractures between the proximal third of the ulna and the base of olecranonQ combined with an anterior dislocation of the proximal radio ulnar jointQ. - Definition by Monteggia 1814 Bado extended Monteggia's original description to include- any fracture of ulna with associated dislocation of the proximal radio - ulnar (rdio - capitellar) jointQ including trans olecranon fractures in which the proximal radio - ulnar joint remains intact. (New definition) Mn: "3 M" : Monteggia - Medial bone (ulna) fracture - Mountain (upper) radio - ulnar joint dislocation. Bado's Classification Type Direction of radial head dislocation Direction of apex of ulnar shaft fracture angulation I (most common)Q AnteriorQ AnteriorQ II Posterior Posterior III Lateral Lateral IV Anterior - Fracture of both radius & ulna - Radius is fractured in proximal third below the biceptal groove Treatment - The clue to successful treatment is to restore the length of the fractured ulna; only then can the dislocated joint be fully reduced & remain stable In adults it means an operationQ - Rigid anatomical fixation by plating (DCP/LCDCP) is the method of choiceQ. * Posterior interosseous nerve has been most commonly injured nerve in forearm fractures, paicularly in association with Monteggia fracture dislocationQ.
Posterior dislocation of elbow
Monteggia fracture dislocation
Reversed monteggia fracture dislocation
Supracondylar fracture of humerus