![]() Purely a motor syndrome resulting in finger drop, and radial wrist deviation on extension.Posterior Interosseous Neuropathy (PIN) - radial nerve branch affects ~10% of Monteggia fractures.Consider open fracture (look for puncture wounds).If splinted and stabilized, can be discharged after consultation with Ortho.Long arm posterior splint with 90 degrees of elbow flexion and the hand in a neutral position.Findings: Radial head dislocation + proximal ulna fracture or plastic deformation of the ulna without obvious fracture.Assess radiocapitellar line on every lateral radiograph of the elbow: a line down the radial shaft should pass through the center of the capitellar ossification center.Radial head can dislocate anterior, posterior, or laterally.proximal 1/3 Ulna fracture + radial head dislocation (due to ulna shortening).CT scan: Fractures involving coronoid, olecranon, and radial head.Xray: AP, Lateral of elbow, forearm, wrist. ![]()
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