2024-03-29T00:00:08Z
https://nagoya.repo.nii.ac.jp/oai
oai:nagoya.repo.nii.ac.jp:02001173
2023-11-16T02:05:01Z
499:508:509:1624513305190
Ossification of the posterior longitudinal ligament located on the concave side of the apex vertebra in adult spinal deformity
Koshimizu, Hiroyuki
Ando, Kei
Kobayashi, Kazuyoshi
Nakashima, Hiroaki
Machino, Masaaki
Ito, Sadayuki
Kanbara, Shunsuke
Inoue, Taro
Yamaguchi, Hidetoshi
Imagama, Shiro
open access
Creative Commons Attribution-NonCommercial-NoDerivatives 4.0 International
ossification of the posterior longitudinal ligament
adult spinal deformity
concave side
mechanical stress
A 48-year-old female patient presented with discomfort in the front of the chest. Whole spinal X-ray revealed a thoracic curve of 52°, and thoracic computed tomography (CT) myelography and magnetic resonance imaging (MRI) showed that ossification of the posterior longitudinal ligament (OPLL) on the concave side of the apex vertebra (T9) had highly compressed the spinal cord. Cervical MRI also showed that the C4–C5 intervertebral disc herniation mildly compressed the spinal nerve. In concomitant surgery, the patient underwent cervical laminoplasty, in which OPLL was removed by decompressive laminectomy and posterior correction surgery.In patients with adult spinal deformity (ASD), asymmetric mechanical stress at the apex vertebra can cause various abnormal conditions. Long-term local mechanical stress on the concave side of the apex vertebra might have affected OPLL formation in the present case. This is the first report of a surgical case for an ossification located on the concave side of the apex vertebra in a patient with ASD. Mechanical stress at the concave side of the apex vertebra was suspected to be a cause of formation of OPLL.
Nagoya University Graduate School of Medicine, School of Medicine
2021-05
eng
departmental bulletin paper
VoR
https://doi.org/10.18999/nagjms.83.2.387
http://hdl.handle.net/2237/0002001173
https://nagoya.repo.nii.ac.jp/records/2001173
10.18999/nagjms.83.2.387
https://www.med.nagoya-u.ac.jp/medlib/nagoya_j_med_sci/832.html
0027-7622
2186-3326
Nagoya Journal of Medical Science
83
2
387
392
https://nagoya.repo.nii.ac.jp/record/2001173/files/19_Koshimizu.pdf
application/pdf
15.1 MB
2021-06-25