Prof. Yong Hai is Professor and Chairman of Orthopedic Surgery at Beijing Chaoyang Hospital, Capital Medical University, China, and Director of the Center for Spinal Deformity. He completed his medical training in China with advanced fellowship training in spinal surgery in the United States and internationally. A globally recognized leader in spine surgery, he holds numerous leadership positions, including President of the Chinese Association of Spine and President of the International Society for the Study of the Lumbar Spine (ISSLS). Prof. Hai has published over 300 peer-reviewed SCI articles with significant international impact and serves on the editorial boards of multiple leading spine journals.