IR@PKUHSC  > 北京大学第一临床医学院  > 皮肤性病科
学科主题临床医学
Investigation of ossification in the posterior longitudinal ligament using micro-focus X-ray CT scanning and histological examination
Fukutake, Katsunori1; Ishiwatari, Takao2; Takahashi, Hiroshi1; Tsuchiya, Kazuaki1; Okubo, Yoichiro2; Shinozaki, Minoru2; Tochigi, Naobumi2; Wakayama, Megumi2; Nemoto, Tetsuo2; Shibuya, Kazutoshi2,3; Wada, Akihito1
关键词Ossification Of The Posterior Longitudinal Ligament Micro-focus X-ray Ct Mechanisms Of Ossification
刊名DIAGNOSTIC PATHOLOGY
2015-11-21
DOI10.1186/s13000-015-0440-8
10
收录类别SCI
文章类型Article
WOS标题词Science & Technology
类目[WOS]Pathology
资助者Japan Agency for Medical Research and development, AMED ; Japan Agency for Medical Research and development, AMED
研究领域[WOS]Pathology
关键词[WOS]BODY-MASS INDEX ; CERVICAL-SPINE ; RICKETS
英文摘要

Background: Ossification in the posterior longitudinal ligament (PLL) correlates with changes of enthesis during the early stages of development, but this issue remains controversial, as little is known regarding the details of this process. The aim of the present study was to elucidate part of the ossification mechanism. Thus, in the present study, we observed and evaluated minute ossifications in the PLL that did not exhibit symptoms of ossification of the posterior longitudinal ligament (OPLL).

Methods: The subjects in the present study were derived from serial autopsy cases from January 2009 to December 2013 at Toho University Omori Medical Center, Japan. Minute ossifications in the PLL from autopsy subjects without any history of OPLL were screened as high-density areas using micro-focus X-ray CT, and the foci were histologically examined. Subsequently, we conducted both micro-focus X-ray CT image analysis and histological examination, and evaluated the correlation between these findings and putative predictive factors reported in previous studies.

Results: A total of 103 individuals among the 267 subjects involved in the present study were analyzed within the study period. There were no cases involving OPLL identification prior to death, and no subjects presented with neurological symptoms of myelopathy. The incidence of cases involving high-density areas greater than 0.1 mm(2) in the PLL was 46.6 %, half of which revealed mature bone structures inside this area. Thus, the high-density areas comprised three types: a continuous posterior-annular fibrosus type (23 cases), an isolated posterior-annular fibrosus type (11 cases), and a posterior-vertebral type (29 cases). However, a positive correlation was observed between the proportion of high-density areas, age (Pearson r = 0.265, p < 0.01), and HbA1c (Pearson r = 0.294, p < 0.01). Histological examination confirmed that these high-density areas involved calcification with or without mature bone formation.

Conclusions: We evaluated minute foci of calcification with and without ossification in the PLL from 103 cadavers, generating the following observations:

1. Minute calcification foci greater than 0.1 mm(2) were observed in the PLL of 48 cases (46.6 %), half of which revealed mature bone structures inside this area (23.3 %).

2. The proportion of minute calcification foci observed in the present study was correlated with age and glucose tolerance, suggesting changes in the OPLL in the early stage.

3. Three different mechanisms of ossification were suggested: The two structures developed behind the disc might reflect the elongation of enthesis or rupture of annular fibrosus, while the remaining structure developed behind the vertebral body might reflect a dystrophic calcification-based bony metaplasia sequence.

语种英语
资助者Japan Agency for Medical Research and development, AMED ; Japan Agency for Medical Research and development, AMED
WOS记录号WOS:000364999300001
引用统计
被引频次:2[WOS]   [WOS记录]     [WOS相关记录]
文献类型期刊论文
条目标识符http://ir.bjmu.edu.cn/handle/400002259/57407
专题北京大学第一临床医学院_皮肤性病科
作者单位1.Toho Univ, Sch Med, Dept Surg Pathol, Ota Ku, Tokyo 1438541, Japan
2.Toho Univ, Omori Med Ctr, Dept Orthoped Surg, Ota Ku, Tokyo 1438541, Japan
3.Peking Univ, Hosp 1, Dept Dermatol, Beijing 100871, Peoples R China
推荐引用方式
GB/T 7714
Fukutake, Katsunori,Ishiwatari, Takao,Takahashi, Hiroshi,et al. Investigation of ossification in the posterior longitudinal ligament using micro-focus X-ray CT scanning and histological examination[J]. DIAGNOSTIC PATHOLOGY,2015,10.
APA Fukutake, Katsunori.,Ishiwatari, Takao.,Takahashi, Hiroshi.,Tsuchiya, Kazuaki.,Okubo, Yoichiro.,...&Wada, Akihito.(2015).Investigation of ossification in the posterior longitudinal ligament using micro-focus X-ray CT scanning and histological examination.DIAGNOSTIC PATHOLOGY,10.
MLA Fukutake, Katsunori,et al."Investigation of ossification in the posterior longitudinal ligament using micro-focus X-ray CT scanning and histological examination".DIAGNOSTIC PATHOLOGY 10(2015).
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