1. Department of Orthopaedic Surgery, Shamir Medical Center, Zerrifin, Israel; Affiliated to the Faculty of Medicine, Tel Aviv University, Tel Aviv, Israel
2. Maccabi Health Services, Tel Aviv, Israel
3. Department of Orthopaedic Surgery, Assuta Medical Center, Ashdod, Israel; Affiliated to the Faculty of Health Sciences, Ben Gurion University, Beersheba, Israel