Dr. Edmund Y. S. Chao (PhD 1971 in Mechanics and Hydraulics) is the Riley Chair in Orthopedic Surgery with joint appointment as Professor in Biomedical Engineering and Mechanical Engineering at the Johns Hopkins University in Baltimore. Before that, he established the Biomechanics Research Program at the Mayo Clinic and Mayo Medical School and worked there for 20 years while holding the Brooks-Hollern Chair for his distinguished service. He has made significant contributions in the basic understanding of musculoskeletal joint mechanics, bone fracture fixation and repair, and artificial joint replacement in the hip, knee and shoulder. He enjoys working with students at different level and post-doctoral fellows with either engineering or medical training. He interacted extensively with the medical device industry and had a long and dedicated service history to the NIH and FDA