injuries poisoning
Elbow Dislocations
Introduction
Most elbow dislocations are posterior and usually result from a fall on an extended arm. Posterior elbow dislocations are common; it is the 2nd most common joint dislocation after shoulder dislocations. Associated injuries may include Fractures Injuries to the ulnar or median nerve Possibly injury to the brachial artery The joint is usually flexed about 45°, and the olecranon is prominent and posterior to the humeral epicondyles; however, these anatomic relationships may be difficult to determine because of swelling. Classically, patients with an elbow dislocation present with a shortened forearm and a very prominent olecranon. X-rays are diagnostic. (See Overview of Dislocations .) 