Comparison of the Bone Union Rates Using a Local Autobone and Bone Graft Substitute Mixed Graft in Lumbar Posterolateral Fusion

“This is an Open Access article distributed under the terms of the Creative Commons Attribution Non-Commercial License (http://creativecommons.org/licenses/by-nc/4.0/) which permits unrestricted non-commercial use, distribution, and reproduction in any medium, provided the original work is properly cited.” The Journal of the Korean Orthopaedic Association Volume 55 Number 2 2020 Received May 31, 2018 Revised August 24, 2018 Accepted April 25, 2019 Correspondence to: Seong-Hwak Hong, M.D. Department of Orthopedic Surgery, Busan Medical Center, 359 World cup-daero, Yeonje-gu, Busan 47527, Korea TEL: +82-51-607-2550 FAX: +82-51-607-2551 E-mail: drgo1973@daum.net ORCID: https://orcid.org/0000-0001-8422-317X