Ankylosing spondylitis and osteoporosis

Ankylosing Spondylitis (AS) is an inflammatory rheumatism characterized by its disease course with flares leading to progressive ankylosis of the spine related to paravertebral ligamentous and discal structures ossification. AS patients suffer significantly more vertebral fractures than control grou...

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Bibliographic Details
Published in:La revue de medecine interne 2006-05, Vol.27 (5), p.392-399
Main Authors: Ardizzone, M, Javier, R M, Kuntz, J L
Format: Article
Language:fre
Subjects:
Biomarkers
Biopsy
Female
Humans
Male
Osteoporosis - classification
Osteoporosis - pathology
Osteoporosis - physiopathology
Spondylitis, Ankylosing - classification
Spondylitis, Ankylosing - pathology
Spondylitis, Ankylosing - physiopathology
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Summary:Ankylosing Spondylitis (AS) is an inflammatory rheumatism characterized by its disease course with flares leading to progressive ankylosis of the spine related to paravertebral ligamentous and discal structures ossification. AS patients suffer significantly more vertebral fractures than control groups. These fractures could affect cervical spine. They are due to either ankylosis-related flawed spine compliance or AS-induced osteoporosis. The physiopathology of this osteoporosis is multi-factorial, but essentially linked to AS-related inflammatory phenomenons. It is marked by reduced bone density (at lumbar spine and femoral neck), increased bone turnover (with increased urinary C-telopeptide cross-linked collagen type 1), but without any significant change in phosphocalcic blood parameters. Histological features are depressed bone formation, with either maintained or increased resorption. The screening of this osteoporosis is based upon investigating people at risk (progressive inflammatory AS) using dual-energy x-ray absorptiometry and biochemical markers of bone turnover. Treatment is based upon a modulation of both inflammatory phenomenons and bone remodelling using bisphosphonates and anti-TNF alpha.
ISSN:0248-8663
DOI:10.1016/j.revmed.2005.09.008