Prof. Dr. Masato Tanaka is a Clinical Professor of the Department of Orthopedic Surgery, at Okayama University, and the Vice President at Okayama Rosai Hospital. He received his Medical degree at Okayama University and he is interested in Medical teaching. He is also the President of the Spine Center, Okayama Rosai Hospital, AOSpine Asia Pacific Education Officer Vice President, and the President of the Japanese Society of Adult Spinal Deformity.