Dr. Kenneth DeFontes specializes in foot and ankle surgery and lower extremity sports medicine. As part of his comprehensive foot and ankle practice, he treats degenerative and arthritis-related conditions in addition to tendon disorders, deformities, trauma, and sports injuries.
Dr. DeFontes completed his foot and ankle surgery fellowship at Brigham and Women’s Hospital in Boston and his orthopedic residency at Union Memorial Hospital in Baltimore. He received additional training in trauma orthopaedics at the R. Adams Cowley Shock Trauma Center at the University of Maryland Medical Center and pediatric orthopaedics at Johns Hopkins Children’s Center.
During his residency, he served as a medical officer at the Food and Drug Administration in the Division of Orthopaedic Devices, overseeing the approval of various orthopedic devices and implants. Dr. DeFontes received his medical degree from the Johns Hopkins University School of Medicine and is board eligible in orthopedic surgery.
During his orthopedic training in both Baltimore and Boston, he cared for athletes of all ages, including local high school, college, and professional sports teams. He has a particular interest in minimally invasive techniques within foot and ankle surgery, with the goal of getting patients back to sports and activity in a timely manner. His practice includes the treatment of arthritis-related foot and ankle pain when surgical or minimally invasive options are appropriate.
Dr. DeFontes was named a Baltimore Magazine Top Doctor in Orthopaedic Foot and Ankle Surgery. He is a Fellow of the American Academy of Orthopaedic Surgery and serves as a Committee Chair with the American Orthopaedic Foot & Ankle Society. He is affiliated with UM St. Joseph Medical Group and Ruxton SurgiCenter.
His academic work includes a publication on Achilles tendon tears.

