There are a number of ways you can “crack” a joint.  Some are relevant to urgent care, and some are just interesting.  

Check out the paper mentioned

Unger DL. Does knuckle cracking lead to arthritis of the fingers? Arthritis Rheum. 1998 May;41(5):949-50. doi: 10.1002/1529-0131(199805)41:5<949::AID-ART36>3.0.CO;2-3. PMID: 9588755. https://pubmed.ncbi.nlm.nih.gov/9588755/

Rizvi A, Loukas M, Oskouian RJ, Tubbs RS. Let’s get a hand on this: Review of the clinical anatomy of “knuckle cracking”. Clin Anat. 2018 Sep;31(6):942-945. doi: 10.1002/ca.23243. Epub 2018 Oct 18. PMID: 30080300. https://pubmed.ncbi.nlm.nih.gov/30080300/ 

Deweber K, Olszewski M, Ortolano R. Knuckle cracking and hand osteoarthritis. J Am Board Fam Med. 2011 Mar-Apr;24(2):169-74. doi: 10.3122/jabfm.2011.02.100156. PMID: 21383216.

https://pubmed.ncbi.nlm.nih.gov/21383216/

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