AC Joint Separations: Overview of diagnosis and treatment
Separation of the acromioclavicular (AC) joint is a common injury encountered in the emergency department. Keys to optimal outcome and return of function in these patients include knowledge of injury mechanism, diagnosis and classification, and initial treatment.




There are a few reasons why piperacillin/tazobactam (Zosyn) is not usually my first choice for a broad-spectrum gram-negative agent in the ED. First, at my institution, the Pseudomonas aeruginosa susceptibilities to pip-tazo are lower than that for cefepime. Second, pip-tazo does not have great CNS penetration, especially compared to ceftriaxone, cefepime, or even meropenem. Third, do we really need the anaerobic coverage that pip-tazo provides for every sick patient? Pip-tazo is great for empiric treatment of intra-abdominal and severe diabetic foot infections, but may not be needed for a hospital-acquired pneumonia. Fourth, with its frequent dosing (every 6 hours), too often the second dose is missed if the patient is still boarding in the ED.