Document Detail


Ossification of the posterior longitudinal ligament of the spine. A case-control risk factor study.
MedLine Citation:
PMID:  9926384     Owner:  NLM     Status:  MEDLINE    
Abstract/OtherAbstract:
STUDY DESIGN: A case-control study. OBJECTIVES: To determine the risk factors for ossification of the posterior longitudinal ligament (OPLL) of the spine. SUMMARY OF BACKGROUND DATA: Previous epidemiologic studies conducted in Japan showed consuming vegetable protein and salt was a risk factor for OPLL. Dietary habits of the Taiwanese and Japanese people are similar. Whether the similar dietary habits play an important role in the high prevalence of OPLL in Taiwan was of interest. METHODS: A case-control study was conducted in a tertiary teaching hospital. The study included 98 consecutive cervical spine patients with OPLL, with 98 age-matched patients with cervical spondylosis serving as control subjects. Radiologic examinations, clinical interviews, physical examinations, and risk factor questionnaires were administered to all the participants. RESULTS: Compared with incidence in the control patients, the frequency of the ossification of the anterior longitudinal ligaments was significantly higher in OPLL patients with OPLL (31% vs. 19%; P = 0.049), but there was no difference in incidence of ossification of the ligamentum flavum (13.3% vs. 16.3%; P = 0.546). More OPLL patients preferred a high-salt diet (OPLL/CS, no:somewhat:yes = 23/38:18/25:57/35;, X2 for trend = 6.3; P = 0.001) and pickled foods (OPLL/CS, no:somewhat:yes = 39/56:11/11:48/31; X2 for trend = 6.7; P = 0.0099). Fewer patients with OPLL consumed meat daily (63% vs. 79%; P = 0.018). High-salt diet (odds ratio = 2.62) and daily meat intake (odds ratio = 0.39) showed persistent association with OPLL in a multivariate logistic regression. CONCLUSIONS: The similar dietary habits, particularly a high-salt and low meat intakes, may partially explain the high prevalence of OPLL in Taiwan and Japan. Modifying dietary habits may help prevent this disease, especially in those high-risk populations.
Authors:
P N Wang; S S Chen; H C Liu; J L Fuh; B I Kuo; S J Wang
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Publication Detail:
Type:  Journal Article; Research Support, Non-U.S. Gov't    
Journal Detail:
Title:  Spine     Volume:  24     ISSN:  0362-2436     ISO Abbreviation:  Spine     Publication Date:  1999 Jan 
Date Detail:
Created Date:  1999-04-01     Completed Date:  1999-04-01     Revised Date:  2009-07-09    
Medline Journal Info:
Nlm Unique ID:  7610646     Medline TA:  Spine (Phila Pa 1976)     Country:  UNITED STATES    
Other Details:
Languages:  eng     Pagination:  142-4; discussion 145     Citation Subset:  IM    
Affiliation:
Department of Neurology, Veterans General Hospital, Taipei, Taiwan. sjwang@vghtpe.gov.tw
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MeSH Terms
Descriptor/Qualifier:
Aged
Case-Control Studies
Diet / adverse effects
Female
Humans
Japan / epidemiology
Male
Meat / adverse effects
Middle Aged
Ossification of Posterior Longitudinal Ligament / epidemiology*,  etiology*,  radiography
Prevalence
Risk Factors
Sodium Chloride, Dietary / adverse effects
Taiwan / epidemiology
Chemical
Reg. No./Substance:
0/Sodium Chloride, Dietary

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