Airs Thursday, Sepetmber 1, at 6 p.m. Dr. Randall Brewer will host this discussion on joint problems and joint replacement surgery. Guests include orthopedic surgeons Dr. Shane Barton and Dr. Edward Morgan, with The Orthopedic Clinic in Shreveport, and Dr. Ellis Cooper, with Orthopedic Specialists of Louisiana. Questions will be taken at 1-800-552-8502 or via Twitter @rrrpublicradio.