Yunus Guzel1, Gokhan Polat2, Muhammet Emin Naldan3, Hayri Ogul2, Mecit Kantarci2. 1. Department of Orthopedics and Traumatology, Medical Faculty, Ordu University, Ordu, Turkey. 2. Department of Radiology, Medical Faculty, Ataturk University, 25240 Erzurum, Turkey. 3. Department of Anaesthesiology and Reanimation, Erzurum Regional Training and Research Hospital, Erzurum, Turkey.