- used to evaluate the extent of ligament injury to the A-C joint
Technique
- patient is erect;
- 10 to 20 pound wts (depending on patient size) are looped over the patient's wrists suspending them from the wrists;
- these are not to be griped by the patient, as the act of gripping may tense the shoulder muscles and alter the radiographs;
- AP views of both A-C joints (preferably on one cassette) with AC-joint exposure technique are obtained