Posterior Interosseous Nerve Injury From Chronic Monteggia Fracture Dislocation Requiring Nerve Reconstruction

(1)Monteggia fracture-dislocations are rare elbow injuries in the pediatric population and can be missed.(2)The orthopaedic surgeon should have heightened suspicion for a posterior interosseous nerve palsy in Bado Type III Monteggia fracture-dislocations.(3)If a posterior interosseous nerve palsy is identified at the time of injury and reduction is difficult, we should consider nerve exploration as it may be entrapped in the joint.