Se-Won Lee, MD, PhD, is an Associate Professor and Head of the Department of Orthopaedic Surgery at Yeouido St. Mary’s Hospital, College of Medicine, The Catholic University of Korea. He specializes in hip and knee surgery as well as pelvic and lower limb trauma. His major clinical and research interests include the management of proximal femoral fractures, periprosthetic fractures, and hip fracture fixation biomechanics. He is an active member and executive board member of the Korean Hip Society (KHS) and the Korean Orthopaedic Trauma Association (KOTA), and also serves as a national faculty member of AO Trauma Korea. Dr. Lee is particularly interested in improving surgical strategies and outcomes for geriatric fractures through evidence-based research, biomechanical modeling, and clinical innovation. His ongoing academic focus is the advancement of hip and knee reconstruction and trauma surgery through biomechanical insight, clinical research, and translational application to optimize patient outcomes.