Posterolateral rotatory elbow subluxation with associated intra-articular entrapment of the radial nerve is extremely uncommon. To our knowledge, only one previous report has described a similar clinical entity1. We describe the case of a patient who presented to us, four weeks after injury, with severe limitation of elbow motion, pain, and motor and sensory radial nerve palsy. Definitive treatment required surgical exploration and removal of the radial nerve from the radiocapitellar joint, which facilitated reduction of the radial head. The patient was informed that data concerning the case would be submitted for publication.
A thirty-seven-year-old right-hand-dominant woman presented to our clinic with a four-week history of pain in the left elbow, loss of sensation over the dorsum of the thumb and index finger, and an inability to extend the wrist and fingers.
Four weeks previously, the patient had fallen onto the outstretched arm while walking outdoors. She felt immediate pain in the left elbow and went to a local emergency room, where she was found to have altered sensation in the radial-nerve distribution in the hand as well as an inability to extend the wrist and fingers. Standard radiographs of the elbow demonstrated posterolateral rotatory elbow subluxation (Figs. 1-A and 1-B), and a manipulative reduction was performed. The limb was placed in an above-the-elbow splint, and the patient was instructed to seek orthopaedic consultation.
The patient did not seek follow-up evaluation as instructed. Three weeks after the injury, the patient presented to our emergency room because the pain, numbness, and weakness had not resolved. Standard anteroposterior and lateral radiographs of the left …
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