Acromioclavicular Joint Injections Periprocedural Care

Updated: Apr 06, 2017
  • Author: Stephen Kishner, MD, MHA; Chief Editor: Erik D Schraga, MD  more...
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Periprocedural Care


Acromioclavicular (AC) joint injection is performed with the following equipment:

  • Needle, 25 gauge, 1-1.5 in.
  • Syringe, 3-5 mL
  • Povidone-iodine swabs or solution
  • Gauze pads, 4 × 4 in.

No consensus exists on the type or amount of steroids to be used for an AC joint injection. Typically, 0.25-0.5 mL of one of the following steroids is injected [5] :

  • Betamethasone sodium phosphate
  • Betamethasone acetate
  • Methylprednisolone, 40 mg/mL

Patient Preparation


Typical anesthetics used include 0.5-1 mL of 1-2% lidocaine or 0.25-0.5% bupivacaine. A 2007 survey of western US physicians by Skedros et al found broad variations in the amount of anesthetic injected for painful shoulder conditions, with surgeons using larger volumes. [6]


The patient can sit or stand, with the affected arm in a neutral position at the side.