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Prevalence, Distribution, and Significance of Incidental Thoracic Ossification of the Ligamentum Flavum in Korean Patients with Back or Leg Pain : MR-Based Cross Sectional Study

Authors
 Bong Ju Moon  ;  Sung Uk Kuh  ;  Sungjun Kim  ;  Keun Su Kim  ;  Yong Eun Cho  ;  Dong Kyu Chin 
Citation
 Journal of Korean Neurosurgical Society, Vol.58(2) : 112-118, 2015 
Journal Title
 Journal of Korean Neurosurgical Society 
ISSN
 2005-3711 
Issue Date
2015
Abstract
OBJECTIVE: Thoracic ossification of the ligamentum flavum (OLF) is a relatively rare disease. Because of ambiguous clinical symptom, it is difficult for early diagnosis of OLF and subsequent treatment can be delayed or missed. Therefore, the purpose of this study is to comprehensively assess the prevalence and distribution of thoracic OLF by magnetic resonance imaging (MRI) and coexisting spinal disease in Korean patients with back pain or leg pain. METHODS: The sample included 2134 Korean patients who underwent MRI evaluation for back pain. The prevalence and distribution of thoracic OLF were assessed using lumbar MRI with whole spine sagittal images. Additionally, we examined the presence of coexisting lumbar and cervical diseases. The presence of thoracic OLF as well as clinical parameters such as age, sex, and surgery were retrospectively reviewed. RESULTS: The prevalence of thoracic OLF in total patients was 16.9% (360/2134). The prevalence tended to increase with aging and was higher in women than in men. The lower thoracic segment of T10-11 was the most frequently affected segment. Of the 360 patients with OLF, 31.9% had coexisting herniated thoracic discs at the same level. Approximately 74% of the patients with OLF had coexisting lumbar and cervical disease. Nine (2.5%) of 360 OLF patients underwent surgery for thoracic lesion. CONCLUSION: The prevalenceof thoracic OLF was relatively higher than those of previous reports. And coexisting lumbar and cervical disease were very frequent. Therefore, we should check coexisting spinal diseases and the exact diagnostic localization of ossification besides lumbar disease.
URI
https://ir.ymlib.yonsei.ac.kr/handle/22282913/141382
DOI
10.3340/jkns.2015.58.2.112
Appears in Collections:
1. Journal Papers (연구논문) > 1. College of Medicine (의과대학) > Dept. of Neurosurgery (신경외과학교실)
1. Journal Papers (연구논문) > 1. College of Medicine (의과대학) > Dept. of Radiology (영상의학교실)
Yonsei Authors
구성욱(Kuh, Sung Uk) ; 김근수(Kim, Keun Su) ; 김성준(Kim, Sungjun) ; 조용은(Cho, Yong Eun) ; 진동규(Chin, Dong Kyu)
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