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  • Inflammatory bowel disease  (1)
  • Morphometry  (1)
  • 1
    Electronic Resource
    Electronic Resource
    Springer
    Surgical and radiologic anatomy 11 (1989), S. 97-102 
    ISSN: 1279-8517
    Keywords: Morphometry ; Intervertebral foramen ; Disc collapse
    Source: Springer Online Journal Archives 1860-2000
    Topics: Medicine
    Description / Table of Contents: Résumé Les auteurs ont effectué une étude des foramen intervertébraux sur des préparations anatomiques de rachis indemne de toutes lésions pathologiques dégénératives. Ils ont étudié des variations de forme et de taille de 38 foramen intervertébraux au cours des mouvements de flexion-extension, avant et après affaissement discal isolé. La technique utilisêe a pris en compte les reliefs osseux, le bord antérieur du disque et les structures capsuloligamentaires postérieures. En flexion, tous les diamètres du foramen sont maximum. En extension extrême, tous les diamètres diminuent de façon significative: les pédicules se rapprochent, le disque fait saillie en arrière et le ligament jaune est poussé en avant par le processus articulaire supérieur de la vertèbre sous-jacente. Un affaissement discal de 4 mm réduit tous les diamètres du foramen. Il apparaît donc qu'après affaissement discal, l'hyperextension lombaire rétrécit suffisamment le diamètre du foramen pour menacer la racine nerveuse.
    Notes: Summary The authors undertook a morphometric study of the intervertebral foramina in anatomic specimens of spines unaffected by degenerative lesions. They studied the variations in shape and size of 38 intervertebral foramina during flexion-extension movements and following an isolated disc collapse. The cast technique takes into account the bony prominences, the bulge of the disc anteriorly and of the capsulo-ligamentous structures posteriorly. In flexion, all the diameters of the foramina are maximal. In full extension all the diameters decrease significantly: the pedicles come closer together, the disc bulges posteriorly and the ligamentum flavum is pushed forward by the superior articular process of the underlying vertebra. A disc collapse of 4 mm decreases all the diameters, and in this case lumbar extension results in a sufficient decrease of foraminal diameter to threaten the nerve root.
    Type of Medium: Electronic Resource
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  • 2
    ISSN: 1433-2965
    Keywords: Bone mineral density ; Ileoanal anastomosis ; Inflammatory bowel disease ; Osteoporosis
    Source: Springer Online Journal Archives 1860-2000
    Topics: Medicine
    Notes: Abstract To assess the rate of bone loss in patients with inflammatory bowel disease, we prospectively studied 35 patients (17 women) aged 36±13 (range 17–60) years, 14 of whom had Crohn's disease and 21 with ulcerative colitis (including 12 with ileoanal anastomosis). Bone mineral density was measured by dual-energy X-ray absorptiometry at the lumbar spine and femoral neck. The follow-up was 19±8 months. During this period, 14 patients received oral steroids. Lumbar bone density changes expressed as a percentage per year were −3.1±4.9%, −6.4±7.5% and +2.0±4.0% in Crohn's disease and ulcerative colitis without and with ileoanal anastomosis respectively (p=0.007). The same pattern was observed at the femoral neck. Mean annual lumbar bone density changes were −6.2±7.0% and +0.9±3.9% in patients with and without steroids during follow-up (p=0.002). We conclude that patients with inflammatory bowel disease are at risk of lumbar and femoral bone loss. However, bone loss is not observed in patients with ileoanal anastomosis.
    Type of Medium: Electronic Resource
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