A native of Madrid, Spain, Dr. Borja received his medical degree from the Complutense University of Madrid and completed his residency in orthopedic surgery at St. Luke's Hospital in Cleveland, Ohio. He then served as the Annie C. Kane Fellow in Hip and Knee Reconstruction at New York Orthopedic Hospital/Columbia-Presbyterian Medical Center. From 1980-1986, he was the chief surgeon of the Department of Orthopedics and Rehabilitation at the University of Miami. Dr. Borja has published in several medical journals on hip and knee joint replacement and knee surgery. He has participated in clinical research on arthritis and bone banking and has delivered numerous presentations at national and international medical meetings on orthopedic surgery.