1. Department of Orthopaedics and Traumatology, Erzincan University Faculty of Medicine, Erzincan, Turkey
2. Department of Orthopaedics and Traumatology, Devrek State Hospital, Zonguldak, Turkey
3. Department of Orthopaedics and Traumatology, Baltalimani Bone and Joint Diseases Hospital, Istanbul, Turkey
4. Department of Orthopaedics and Traumatology, Dogubeyazit State Hospital, Agri, Turkey