Author: Richard N. Villar

Joseph C. Mc Carthy, MD Orthopedic Surgery, Hip Joint Arthroplasty/Hip Arthroscopy Massachusetts General Hospital  Boston, MA, USA Orthopedic Surgery Director, Kaplan Joint Center Newton-Wellesley Hospital Newton, MA, USA Philip C. Noble, BE, MEng Sci, Ph D Director of Research Institute of Orthopedic Research and Education Houston, TX, USA Orthopedic Research Joseph Barnhart Department of Orthopedic Surgery  Baylor College of Medicine Houston, TX, USA Richard N. Villar, MSc(Hons), MA, FRCS Consultant Orthopedic Surgeon Orthopedics The Villar Bajwa Practice Spire Cambridge Lea Hospital Cambridge, UK