Professor Mahmoud Hafez was awarded academic degree from University of Leeds (UK). He was locum Consultant Orthopedic Surgeon at NHS hospitals (UK). He is as well examiner with SICOT Diploma, World Orthopedic Organization, Belgium; Instructor for ATLS course, American College of Surgeons, USA; Trainer in AO-Recon courses and Reviewer in AO Foundation (Davos, Switzerland); Executive Committee Member in CAOS-International Society, Glasgow, UK; Executive Committee Member, International Federation of Inventors Associations (Geneva, Switzerland); Principal investigator of Egyptian Community Arthroplasty Register, which is an associate member of the International Society of Arthroplasty Registries,(Sweden); Member of the expert committee in 3D printing (manufacturing), SAMA (Shanghai, China); Editorial board member & reviewer to some journals and institutes; Board Member and Ex Vice President of the American Fracture Association, IL, USA; Founder of the Egyptian Musculoskeletal Research Association, Egypt; Inventor: 10 patents on patient specific instruments & implants for bone & joint surgery. He has won many international grants.