The channel you were counting on is gone
In September 2019 Google announced a policy prohibiting advertising for unproven or experimental medical techniques, naming most stem cell therapy, cellular non-stem therapy, and gene therapy. It took effect that October. Meta enforces a comparable restriction. There is no clever workaround, and the agencies selling one are getting accounts permanently disabled.
What replaces it is slower and more durable. Organic search for the specific joint, condition, and procedure. A Google Business Profile that ranks. Reviews from patients who were treated. A referral relationship with the orthopedic and pain practices in your market. None of that turns on in a week.
Every claim on the site is a regulatory decision
FDA regulates human cells and tissue products under 21 CFR Part 1271. The line between a 361 product and a 351 biologic that needs an approved application comes down to minimal manipulation and homologous use. The agency's enforcement discretion period ended in 2021 and warning letters followed.
The only FDA-approved stem cell products are cord blood derived products for a narrow set of blood disorders. Any page implying approval for knees, backs, or neurological conditions states something that is not true, and the FTC has brought cases against clinics over exactly that.
Write precisely rather than writing nothing. Pages that describe what the procedure is, what the evidence does and does not show, and what a patient should ask before paying rank well and get cited by AI search, because they are the only honest pages in the category.