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Lee H. Riley Jr., M.D., Chair in Orthopaedic Surgery

School of Medicine

Established in 1994 by colleagues, friends, patients, and family of Lee H. Riley Jr. in his honor

RileyLeeLEE H. RILEY JR, who died in 2001, was a Hopkins Distinguished Service Professor, professor of orthopaedic surgery and served as chairman of the Department of Orthopaedic Surgery. He wrote extensively on the anterior approach to the cervical spine and was one of the first surgeons in the United States to perform total hip anthroplasty. He was also involved in the design and development of the first total knee replacement done in this country. Dr. Riley was a founding member and former president of both the Cervical Spine Research Society and the Knee Society, and was a member of numerous other societies, including the Hip Society, the Orthopaedic Research Society, and the American Orthopaedic Association.

A member of the Nursing School Council, Dr. Riley chaired the Johns Hopkins Medical Board, the Physician Advisors Committee, and the Medical School Council. Over his long career at Hopkins, Dr. Riley served as mentor and counselor to generations of students, resident trainees, and colleagues and was a caring physician and surgeon to countless patients.

Held by Xu Cao

CaoXuXU CAO, the Lee H. Riley Jr., M.D., Professor of Orthopaedic Surgery, received his PhD from the University of South Carolina’s Department of Chemistry and Biochemistry. After graduating, Dr. Cao completed a postdoctoral fellowship at Washington University. Prior to coming to Johns Hopkins, he was a professor of pathology at the University of Alabama at Birmingham.

An active investigator, Dr. Cao currently serves as co-director for the Center for Musculoskeletal Research in the Department of Orthopaedic Surgery, where he pursues research in the area of differentiation of mesenchymal stem cells. The center has been charged to integrate and further develop the musculoskeletal research program with investigators within orthopaedics and across several departments and schools at Johns Hopkins that have established research programs in skeletal biology.

In addition to working in the both the classroom and the laboratory, Dr. Cao is senior associate editor for the Journal of Bone & Mineral Research and an active member of the American Society for Bone & Mineral Research.