Department of Orthopaedic Surgery, Mie University Graduate School of Medicine, 2-174 Edobashi, TsuCity, Mie 514-8507, Japan. I graduated Mie University, School of Medicine in Japan. I received my Ph.D. from Mie University. My specialty is Hip arthroplasty, Knee arthroplasty, Biomaterial, and Biochemical marker. Since 1997, 81 papers published in international peer-reviewed journals. I am a member of Orthopaedic Research Society, International Society of Orthopaedic Surgery and Traumatology, Asia Pacific League of Associations for Rheumatology. Japanese Orthopaedic Association, Japan College of Rheumatology, Japanese Society for Replacement Arthroplasty, The Central Japan Association of Orthopaedic Surgery & Traumatology, Japanese Hip Society, Japanese Orthopaedic Society of Knee, Arthroscopy and Sports Medicine, Japanese Society for Joint Diseases, Japanese Association of Rehabilitation Medicine, Japanese Society for Study of Bone and Joint Infections, Chubu Rheumatism Association, and Japanese Society for Connective Tissue Research. Specialization areas: Hip arthroplasty, Knee arthroplasty, Biomaterial, Biochemical marker, Matricellular protein, Tenascin, Cartilage.