Injections of joints and soft tissue: Part I. General guidelines

Joint and soft tissue injections may be used therapeutically and as diagnostic tests to differentiate various pain syndromes. With proper patient selection and the use of appropriate injection techniques, morbidity can be less than that seen with nonsteroidal anti-inflammatory drug therapy. Family physicians can readily learn aspiration and injection techniques and should be able to perform injections of most anatomic sites.

Published by American family physician, 1991. The guideline itself is at the source linked here.

pubmed.ncbi.nlm.nih.gov/1927834/