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Ossification of thoracic ligamenta flava

Journal Article · · AJR, Am. J. Roentgenol.; (United States)
; ;

Although ligamentum flavum ossification (LFO) often occurs in normal persons, there are no reports of its detection on lateral chest radiographs made during screening examinations. Review of 1,744 consecutive lateral chest radiographs identified LFO in 6.2% of males and 4.8% of females. LFO occurred mainly at the intervertebral segments from T9-T10 through T12-L1. Most prevalent was the hook-shaped LFO, protruding inferoirly from the inferior facets into the projections of the intervertabral foramina. Though LFO can cause severe neurologic symptoms, none of the affected persons in this study reported such symptoms. LFO was first visualized radiographically when the subjects were 20-40 years old, and it may be a physiologic condition. The LFO in these cases existed independent of thoracic posterior longitudinal ligament ossification, diffuse idiopathic skeletal hyperostosis, and degenerative osteoarthritis.

Research Organization:
Radiation Effects Research Foundation, Hiroshima, Japan
OSTI ID:
5514637
Journal Information:
AJR, Am. J. Roentgenol.; (United States), Journal Name: AJR, Am. J. Roentgenol.; (United States) Vol. 141:1; ISSN AAJRD
Country of Publication:
United States
Language:
English

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Related Subjects

550602 -- Medicine-- External Radiation in Diagnostics-- (1980-)
560151* -- Radiation Effects on Animals-- Man
62 RADIOLOGY AND NUCLEAR MEDICINE
63 RADIATION, THERMAL, AND OTHER ENVIRON. POLLUTANT EFFECTS ON LIVING ORGS. AND BIOL. MAT.
A-BOMB SURVIVORS
ANIMAL TISSUES
BIOLOGICAL EFFECTS
BIOLOGICAL RADIATION EFFECTS
BIOMEDICAL RADIOGRAPHY
BODY
BODY AREAS
CALCINOSIS
CHEST
CONNECTIVE TISSUE
DELAYED RADIATION EFFECTS
DIAGNOSIS
DIAGNOSTIC TECHNIQUES
DISEASES
HUMAN POPULATIONS
LIGAMENTS
MEDICINE
NUCLEAR MEDICINE
ORGANS
PATHOLOGICAL CHANGES
POPULATIONS
RADIATION EFFECTS
RADIOLOGY
SKELETAL DISEASES
SKELETON
TISSUES
TOMOGRAPHY
VERTEBRAE