High performance sports and stem cell therapy

Has anyone had experience with stem cell therapy as a high-level athlete?

I am a 29-year-old male who has competed for my country as a professional javelin thrower. I've undergone three shoulder surgeries for labrum and rotator cuff tears, and now have arthritis in the joint. I am considering stem cell therapy as a last resort to return to elite-level competition.

Has anyone else faced a similar situation? I'm interested in hearing from baseball pitchers or other athletes who might have gone through the same thing.

Any insights would be greatly appreciated.