Dr. John Theodoropoulos is a distinguished orthopaedic surgeon specializing in sports medicine and arthroscopic surgery with extensive experience in joint preservation, cartilage restoration, and complex ligament reconstruction. He earned his medical degree from Queen’s University and completed his orthopaedic surgery residency at McGill University, followed by a Fellowship in Sports Medicine at the University of Illinois Chicago and a Master of Science in Cartilage Regeneration at the University of Toronto.
Dr. Theodoropoulos is on staff in the Division of Orthopaedic Surgery at both Mount Sinai Hospital (Sinai Health) and Women’s College Hospital in Toronto. At Mount Sinai, he holds the Dovigi Orthopaedic Sports Medicine Chair and serves as Medical Director of the Dovigi Orthopaedic Sports Medicine Clinic, a centre committed to advanced care for sports-related injuries and musculoskeletal conditions. In his academic role, he is Fellowship Director of the University of Toronto Orthopaedic Sports Medicine Fellowship Program, where he mentors emerging specialists in arthroscopy, reconstructive techniques, and joint-preserving procedures. His clinical practice spans arthroscopic management of shoulder, hip, knee, elbow, and ankle injuries, including ACL and multiligament reconstructions, advanced cartilage repair, and meniscal preservation.
Dr. Theodoropoulos’s commitment to education has been recognized through teaching awards and frequent invitations to present at continuing-education seminars and professional conferences on topics such as ligament reconstruction, cartilage repair, and arthroscopic techniques. He serves as Head Orthopaedic Surgeon for the Toronto Maple Leafs (NHL) and the Toronto Blue Jays (MLB), providing comprehensive surgical care and injury management for elite athletes. In addition, he consults for numerous professional and amateur teams throughout the Greater Toronto Area, applying his expertise across all levels of sport.