Anyone plagued by arthritic knees can verify that the pain often worsens as poor weather arrives and the barometric pressure changes. Thanks to the research of Dr. Kevin Stone of The Stone Clinic, patients across the country could reap the benefits of pig tissue as a human substitute in knee procedures.

Stone has been one of the U.S. Ski Team physicians since 1988, and his Stone Foundation for Sports Medicine and Arthritis Research develops new procedures in orthopaedics. Stone is currently focusing on using