Emergency department evaluation and treatment of the shoulder and humerus.

Shoulder injuries are among the most common musculoskeletal complaints seen in US emergency departments (EDs). ED evaluation of the shoulder must account for the broad range of potential fracture patterns seen in the clavicle, scapula, and humerus. Acromioclavicular dislocation is often encountered in the ED and treatment varies by severity. Dislocation of the shoulder is frequently seen, and the ED physician must be skilled in several reduction techniques to optimize a successful reduction. An understanding of when orthopedic consultation is appropriate and when patients can be dispositioned with timely follow-up are integral to complete patient recovery.