Association between diffuse idiopathic skeletal hyperostosis and thoracic kyphosis in patients with cervical myelopathy: a retrospective observational study
Abstract Background Diffuse idiopathic skeletal hyperostosis (DISH) is a structural abnormality of the thoracic spine that is known to impair posture. However, the relationship between DISH and sagittal balance in the whole spine is unclear. The aims of this study were to investigate the prevalence...
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oai:doaj.org-article:e3f83614ff8b4ad18f61b3fab55f15482021-11-21T12:27:42ZAssociation between diffuse idiopathic skeletal hyperostosis and thoracic kyphosis in patients with cervical myelopathy: a retrospective observational study10.1186/s12891-021-04851-z1471-2474https://doaj.org/article/e3f83614ff8b4ad18f61b3fab55f15482021-11-01T00:00:00Zhttps://doi.org/10.1186/s12891-021-04851-zhttps://doaj.org/toc/1471-2474Abstract Background Diffuse idiopathic skeletal hyperostosis (DISH) is a structural abnormality of the thoracic spine that is known to impair posture. However, the relationship between DISH and sagittal balance in the whole spine is unclear. The aims of this study were to investigate the prevalence of DISH in patients with cervical myelopathy caused by cervical ossification of the posterior longitudinal ligament (OPLL) or cervical spondylosis and to compare sagittal alignment of the spine between patients with and without DISH. Methods A total of 103 consecutive patients with a diagnosis of cervical myelopathy due to cervical OPLL or spondylosis were retrospectively enrolled in this single-center study. DISH was defined as an ossified lesion that was seen to be completely bridging at least four contiguous adjacent vertebral bodies in the thoracic spine on computed tomography scans. Cervical and spinopelvic sagittal parameters were measured in whole spine radiographs. Results The study population included 28 cases with DISH [DISH (+) group] and 75 without DISH [DISH (−) group]. OPLL was more prevalent in the DISH (+) group than in the DISH (−) group; however, there were no significant differences in other clinical findings. Propensity score matching produced 26 pairs. C7 slope, C2-7 sagittal vertical axis (C-SVA), whole thoracic kyphotic angles, upper thoracic kyphosis, and T5-T12 thoracic kyphosis values were significant higher in the DISH (+) group than in the DISH (−) group. There was no significant between-group difference in the other sagittal spinopelvic parameters. Conclusions This study is the first to compare sagittal alignment in patients with cervical myelopathy according to whether or not they have DISH. Patients with DISH are more likely to have excessive kyphosis in the thoracic spine, a high C7 slope, and a high C2-7 SVA.Motoyoshi TakayukiHirai TakashiYoshii ToshitakaInose HiroyukiMatsukura YuEgawa SatoruKobayashi YutakaUtagawa KurandoHashimoto JunKawabata AtsuyukiTakahashi TakuyaTanaka TomoyukiOkawa AtsushiBMCarticleDiffuse idiopathic skeletal hyperostosisSagittal alignmentOssification of the posterior longitudinal ligamentSpondylosisDiseases of the musculoskeletal systemRC925-935ENBMC Musculoskeletal Disorders, Vol 22, Iss 1, Pp 1-6 (2021) |
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Diffuse idiopathic skeletal hyperostosis Sagittal alignment Ossification of the posterior longitudinal ligament Spondylosis Diseases of the musculoskeletal system RC925-935 |
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Diffuse idiopathic skeletal hyperostosis Sagittal alignment Ossification of the posterior longitudinal ligament Spondylosis Diseases of the musculoskeletal system RC925-935 Motoyoshi Takayuki Hirai Takashi Yoshii Toshitaka Inose Hiroyuki Matsukura Yu Egawa Satoru Kobayashi Yutaka Utagawa Kurando Hashimoto Jun Kawabata Atsuyuki Takahashi Takuya Tanaka Tomoyuki Okawa Atsushi Association between diffuse idiopathic skeletal hyperostosis and thoracic kyphosis in patients with cervical myelopathy: a retrospective observational study |
description |
Abstract Background Diffuse idiopathic skeletal hyperostosis (DISH) is a structural abnormality of the thoracic spine that is known to impair posture. However, the relationship between DISH and sagittal balance in the whole spine is unclear. The aims of this study were to investigate the prevalence of DISH in patients with cervical myelopathy caused by cervical ossification of the posterior longitudinal ligament (OPLL) or cervical spondylosis and to compare sagittal alignment of the spine between patients with and without DISH. Methods A total of 103 consecutive patients with a diagnosis of cervical myelopathy due to cervical OPLL or spondylosis were retrospectively enrolled in this single-center study. DISH was defined as an ossified lesion that was seen to be completely bridging at least four contiguous adjacent vertebral bodies in the thoracic spine on computed tomography scans. Cervical and spinopelvic sagittal parameters were measured in whole spine radiographs. Results The study population included 28 cases with DISH [DISH (+) group] and 75 without DISH [DISH (−) group]. OPLL was more prevalent in the DISH (+) group than in the DISH (−) group; however, there were no significant differences in other clinical findings. Propensity score matching produced 26 pairs. C7 slope, C2-7 sagittal vertical axis (C-SVA), whole thoracic kyphotic angles, upper thoracic kyphosis, and T5-T12 thoracic kyphosis values were significant higher in the DISH (+) group than in the DISH (−) group. There was no significant between-group difference in the other sagittal spinopelvic parameters. Conclusions This study is the first to compare sagittal alignment in patients with cervical myelopathy according to whether or not they have DISH. Patients with DISH are more likely to have excessive kyphosis in the thoracic spine, a high C7 slope, and a high C2-7 SVA. |
format |
article |
author |
Motoyoshi Takayuki Hirai Takashi Yoshii Toshitaka Inose Hiroyuki Matsukura Yu Egawa Satoru Kobayashi Yutaka Utagawa Kurando Hashimoto Jun Kawabata Atsuyuki Takahashi Takuya Tanaka Tomoyuki Okawa Atsushi |
author_facet |
Motoyoshi Takayuki Hirai Takashi Yoshii Toshitaka Inose Hiroyuki Matsukura Yu Egawa Satoru Kobayashi Yutaka Utagawa Kurando Hashimoto Jun Kawabata Atsuyuki Takahashi Takuya Tanaka Tomoyuki Okawa Atsushi |
author_sort |
Motoyoshi Takayuki |
title |
Association between diffuse idiopathic skeletal hyperostosis and thoracic kyphosis in patients with cervical myelopathy: a retrospective observational study |
title_short |
Association between diffuse idiopathic skeletal hyperostosis and thoracic kyphosis in patients with cervical myelopathy: a retrospective observational study |
title_full |
Association between diffuse idiopathic skeletal hyperostosis and thoracic kyphosis in patients with cervical myelopathy: a retrospective observational study |
title_fullStr |
Association between diffuse idiopathic skeletal hyperostosis and thoracic kyphosis in patients with cervical myelopathy: a retrospective observational study |
title_full_unstemmed |
Association between diffuse idiopathic skeletal hyperostosis and thoracic kyphosis in patients with cervical myelopathy: a retrospective observational study |
title_sort |
association between diffuse idiopathic skeletal hyperostosis and thoracic kyphosis in patients with cervical myelopathy: a retrospective observational study |
publisher |
BMC |
publishDate |
2021 |
url |
https://doaj.org/article/e3f83614ff8b4ad18f61b3fab55f1548 |
work_keys_str_mv |
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