The effect of overlying calcification on lumbar bone densitometry

We studied bone mineral density (BMD) of the spine using dual photon absorptiometry, as well as standard anterior-posterior and lateral lumbar spine X-ray film in 113 ambulatory elderly male volunteers with a mean age of 72 years (range 66-91 years). Each subject had three measurements taken for lum...

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Vydané v:Calcified tissue international Ročník 50; číslo 6; s. 507
Hlavní autori: Drinka, P J, DeSmet, A A, Bauwens, S F, Rogot, A
Médium: Journal Article
Jazyk:English
Vydavateľské údaje: United States 01.06.1992
Predmet:
Absorptiometry, Photon
Aged
Aged, 80 and over
Analysis of Variance
Aortic Diseases - physiopathology
Bone Density
Calcinosis - physiopathology
Humans
Lumbar Vertebrae
Male
Sclerosis - physiopathology
ISSN:0171-967X
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Popis
Shrnutí:We studied bone mineral density (BMD) of the spine using dual photon absorptiometry, as well as standard anterior-posterior and lateral lumbar spine X-ray film in 113 ambulatory elderly male volunteers with a mean age of 72 years (range 66-91 years). Each subject had three measurements taken for lumbar vertebrae 1 through 4: BMD, length of aortic calcification (AC), and degenerative facet sclerosis graded 0-3. A separate statistical model was fit to BMD for each vertebra using analysis of covariance. AC did not contribute significantly to BMD. BMD was increased by 0.28-0.03 g/cm2 (L1-L4) with a sclerosis score of 2, and by 0.47-0.25 g/cm2 with a sclerosis score of 3, P less than 0.001. The association between increased BMD and overlying facet sclerosis may be related to the bone density within the sclerosis itself or to an association between degenerative joint disease and a generalized increase in subchondral bone.
Bibliografia:ObjectType-Article-1
SourceType-Scholarly Journals-1
ObjectType-Feature-2
content type line 23
ISSN:0171-967X
DOI:10.1007/BF00582163