Thanks for your page. I have a coccyx broken with callus, with no ossification, due to an accident. It was good to know that I am not alone and follow different therapies.
Finally, I tried localized laser therapy. It was a pen-like laser tool, put to the coccyx directly. I received 25 treatments, a treatment was about 10 minutes in ORFI, Hungary and after 11 months I am OK, half-a-year pain-free.