1Bone and Joint Reconstruction Research Center, Department of Orthopedics, School of Medicine, Iran University of Medical Sciences, Tehran, Iran
2Division of Orthopedic Surgery, University of Alberta, AB, Canada
M. Mahmoudi, Orthopedic Surgeon, Fellowship of Hip and Pelvis Surgery, Bone and Joint Reconstruction, Research Center, Shafa hospital, Bahrestan square, Tehran, Iran, Email: [email protected]
One of the authors (MA) certifies working as an unpaid consultant for the local distributors of Zimmer-Biomet, Stryker, and Microport in Iran.
All ICMJE Conflict of Interest Forms for authors and Clinical Orthopaedics and Related Research® editors and board members are on file with the publication and can be viewed on request.
Clinical Orthopaedics and Related Research® neither advocates nor endorses the use of any treatment, drug, or device. Readers are encouraged to always seek additional information, including FDA approval status, of any drug or device before clinical use.
Ethical approval for this study was obtained from the Iran University of Medical Sciences (approval ID: IR.IUMS.REC.1400.1054).
This work was performed at the Bone and Joint Reconstruction Research Center, Department of Orthopedics, School of Medicine, Iran University of Medical Sciences, Tehran, Iran.