caa a22 4500 445835257 CHVBK 20180317145328.0 cr unu---uuuuu 170323e20111101xx s 000 0 eng 10.1007/s00586-011-1864-9 doi (NATIONALLICENCE)springer-10.1007/s00586-011-1864-9 Adjacent segment degenerative disease: is it due to disease progression or a fusion-associated phenomenon? Comparison between segments adjacent to the fused and non-fused segments [Elektronische Daten] [Kyung-Jin Song, Byung-Wan Choi, Taek-Soo Jeon, Kwang-Bok Lee, Han Chang] Introduction: The purpose of this study was to determine whether fusion causes adjacent segment degeneration or whether degeneration is due to disease progression. Materials and methods: Eighty-seven patients that had undergone single level anterior cervical decompression and fusions with at least 5years of follow-up were enrolled in this retrospective study. Segments adjacent to fusion levels (above or below) were allocated to group A, and all others were allocated to group B. Radiographic evaluations of adjacent level changes included assessments of; disc degenerative changes, anterior ossification formation, and segmental instability. The developments of new clinical symptoms were also evaluated. Results: In group A, adjacent segment degenerative change developed in 28 segments (16%) and two cases (2%) developed new clinical symptoms. In group B, adjacent segment degenerative change developed in 10 segments (3%), and two cases (0.7%) also developed new clinical symptoms. Additional operations were performed in one patient in each group. Conclusion: Although, fusion per se can accelerate the severity of adjacent level degeneration, no significant difference was observed between adjacent and non-adjacent segments in terms of the incidence of symptomatic disease. The authors conclude that adjacent segment disease is more a result of the natural history of cervical spondylosis than the presence of fusion. Springer-Verlag, 2011 Cervical nationallicence Fusion nationallicence Adjacent segment disease nationallicence Natural history nationallicence Song Kyung-Jin Department of Orthopedic Surgery, School of Medicine, Research Institute of Clinical Medicine, Chonbuk National University Hospital, Jeonju, Korea aut Choi Byung-Wan Department of Orthopedic Surgery, Spine Center, Inje University, Haeundae Paik Hospital, 1435, Jwa-dong, Haeundae-gu, 612-030, Busan, Republic of Korea aut Jeon Taek-Soo Department of Orthopedic Surgery, Spine Center, Inje University, Haeundae Paik Hospital, 1435, Jwa-dong, Haeundae-gu, 612-030, Busan, Republic of Korea aut Lee Kwang-Bok Department of Orthopedic Surgery, School of Medicine, Research Institute of Clinical Medicine, Chonbuk National University Hospital, Jeonju, Korea aut Chang Han Department of Orthopedic Surgery, Spine Center, Inje University, Haeundae Paik Hospital, 1435, Jwa-dong, Haeundae-gu, 612-030, Busan, Republic of Korea aut European Spine Journal Springer-Verlag 20/11(2011-11-01), 1940-1945 0940-6719 20:11<1940 2011 20 586 https://doi.org/10.1007/s00586-011-1864-9 text/html Onlinezugriff via DOI 1 research-article jats NATIONALLICENCE 856 40 https://doi.org/10.1007/s00586-011-1864-9 text/html Onlinezugriff via DOI NATIONALLICENCE 700 1- Song Kyung-Jin Department of Orthopedic Surgery, School of Medicine, Research Institute of Clinical Medicine, Chonbuk National University Hospital, Jeonju, Korea aut NATIONALLICENCE 700 1- Choi Byung-Wan Department of Orthopedic Surgery, Spine Center, Inje University, Haeundae Paik Hospital, 1435, Jwa-dong, Haeundae-gu, 612-030, Busan, Republic of Korea aut NATIONALLICENCE 700 1- Jeon Taek-Soo Department of Orthopedic Surgery, Spine Center, Inje University, Haeundae Paik Hospital, 1435, Jwa-dong, Haeundae-gu, 612-030, Busan, Republic of Korea aut NATIONALLICENCE 700 1- Lee Kwang-Bok Department of Orthopedic Surgery, School of Medicine, Research Institute of Clinical Medicine, Chonbuk National University Hospital, Jeonju, Korea aut NATIONALLICENCE 700 1- Chang Han Department of Orthopedic Surgery, Spine Center, Inje University, Haeundae Paik Hospital, 1435, Jwa-dong, Haeundae-gu, 612-030, Busan, Republic of Korea aut NATIONALLICENCE 773 0- European Spine Journal Springer-Verlag 20/11(2011-11-01), 1940-1945 0940-6719 20:11<1940 2011 20 586 Metadata rights reserved Springer special CC-BY-NC licence nationallicence BK010053 XK010053 XK010000 NATIONALLICENCE NATIONALLICENCE NL-springer