1. Division of Orthopaedic Surgery, Tel Aviv Sourasky Medical Center, Sackler Faculty of Medicine, Tel Aviv University, Tel Aviv, Israel
2. Department of Orthopedics, Assuta Medical Center, Ashdod, Israel
3. Orthopaedics Department, C.O.F. Lanzo Hospital, Como, Italy in association with the Orthopaedics Department, University of Pavia, Pavia, Italy
4. Department of Orthopedic Surgery, Montefiore Medical Center, The University Hospital for Albert Einstein College of Medicine, USA