Constantine A. Demetracopoulos, MD

Dr. Widmann is Professor of Orthopedic Surgery and has served as Chief of the Pediatric Orthopedic Surgery Service at HSS since 2004. Dr. Widmann specializes in the surgical and nonsurgical treatment of pediatric spinal deformity and pediatric limb deformity. Dr. Widmann is an expert pediatric spinal deformity surgeon and pediatric limb deformity surgeon with established clinical and research expertise, and has published over 50 peer-reviewed articles and multiple book chapters. Dr. Widmann is focused on providing state-of-the-art surgical and nonsurgical management for pediatric patients with complex deformities.

Dr. Marx is an Attending Orthopedic Surgeon at Hospital for Special Surgery in New York City and Professor of Orthopedic Surgery and Public Health at Weill Cornell Medical College. One of New York Magazine's "Best Doctors in New York," Dr. Marx specializes in arthroscopic and open procedures for knee and shoulder problems, including knee and shoulder joint replacement surgery.

Dr. Gonzalez Della Valle is an orthopedic surgeon at HSS specializing in reconstructive surgery of the hip and knee, including joint reserving procedures (osteotomies and arthroscopy), as well as hip and knee replacement surgery.