www.nrronline.orgAhmetPiskin,Associateprofessor.Correspondingauthor:AtillaÇıtlak,M.D.,Assistantprofessor,DepartmentofOrthopedicsandTraumatology,SchoolofMedicine,GiresunUniversity,Giresun,Turkey,atillacitlak@yahoo.com.Received:2013-10-18Accepted:2013-11-23(nrr-27-13)Acknowledgments:WewouldliketoacknowledgeProfessorPürçekG,DepartmentofMechanicalEngineering,KaradenizTechnicalUniversity,Turkeyf...