Winyou Ratanachai, M.D.

Winyou Ratanachai, M.D., is a board-certified orthopedic surgeon with over 30 years of experience. He further mastered an MCh Orth in Orthopaedic Surgery at the University of Liverpool, UK, and completed clinical training at the Royal Liverpool Hospital and San Diego Shoulder Institute. With over 30 years of experience, he has held key academic and leadership roles, including serving as Chairman of the Orthopaedics Basic Science training course and examination under the Royal College of Orthopaedic Surgeons of Thailand.

Throughout his career, Dr. Winyou has international experience spanning areas such as diabetic foot care, shoulder and knee arthroscopy, joint replacement, and trauma care. He is recognized for developing innovative repair techniques such as the “B-Stitch” and “X-Square.” 

He initiated the concept of 3-dimensional repair of the meniscus, describing suture mechanics to repair the meniscus with minimal disturbance of blood supply and inducing marrow cells to migrate to the repair site.  He is one of a team in Thailand that pioneered a living osteochondral transplant to repair a previously irreparable injury of the cartilage and ligaments. His treatment philosophy, which has attracted many of the world's leading athletes and doctors, goes beyond mere repair, using both conservative and surgical techniques to reinforce and maximize a patient's function. His extensive publications and research contributions have shaped practices in sports orthopedics and cartilage

His expertise includes:

• Arthroscopic surgery of the shoulder, knee, and hip
• Treatment of shoulder instability, load sharing repair of rotator cuff tear, collagen patch reinforcement and shoulder replacement (primary and revision)
• Non-operative and joint preservative treatment of knee osteoarthritis
• Advanced meniscus repair techniques (e.g., B-Stitch, X-Square) meniscus and living osteochondral transplant. 
• Management of simple/complex sports injuries and adult orthopedic trauma