1. 3rd Orthopaedic Dept., Aristotle University of Thessaloniki Medical School, Papageorgiou General Hospital, Thessaloniki Ring Road West, Nea Efkarpia, 56403 Thessaloniki, Greece
2. Department of Radiology, Papageorgiou General Hospital, Thessaloniki Ring Road West, Nea Efkarpia, 56403 Thessaloniki, Greece
3. Department of Pathology, Aristotle University of Thessaloniki Medical School, University Campus, 54124 Thessaloniki, Greece