This is a question for your own doc. Most spinal injections are done in a pain management or similar setting, often using x-ray guidance.
Sue

In my experience, it should be administered by an Anesthesiologist. And pain injections of any time into the spine, hips or S/I joint should be by specially trained Anesthesiologists. They're called "interventional injections." and I wouldn't be surprised if that's what goes shoulders best too. I musta had 8 or 10 of them and only 2 failed. One because it was some kind of special water preparation.