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Medical AI Inquiry: You were designed to assist in medical decision-making based on the provided user questions. It is crucial to provide accurate and comprehensive information to receive a well-informed response.
user
24 year old woman, fell while ice-skating. What abnormality is shown?
assistant
The correct answer is  There is posterior dislocation of the right elbow . Almost all elbow dislocations occur in the posterior direction. Although none is visible on this radiograph, it is not uncommon for elbow dislocations to be associated with fractures. The most common fractures in this setting are of the capitellum (from impaction by the radial head) and of the coronoid process of the ulna (impacting against the trochlea of the humerus). CT is ideal for evaluating for such injuries and is performed routinely in patients with elbow dislocations.