Monteggia fracture is:
Correct Answer: Fracture of the proximal third of the ulna with dislocation of the head of the radius.
Description: Ans. (b) Fracture of the proximal third of the ulna with dislocation of the head of the radius. Maheshwari 5th ed. /110* Monteggia fracture: Fracture of the proximal third of the ulna with dislocation of proximal radio-ulnar joint.* Posterior interosseous nerve is damaged in case of monteggia fracture dislocation.* Cause of monteggia fracture: Fall on an outstretched hand with the forearm in excessive pronation (hyper-pronation injury).Also KnowGaleazzi Fracture: Fracture of the distal third of radius and dislocation of the distal radio - ulnar joint.* Isolated ulnar shaft fractures are most commonly seen in defence against blunt trauma (e.g. nightstick injury). Such an isolated ulnar shaft fracture is not a Monteggia fracture. It is called a nightstick fracture'.
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