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  • Dasycladalean green alga  (1)
  • Disruption  (1)
  • 1
    Electronic Resource
    Electronic Resource
    Springer
    Surgical and radiologic anatomy 21 (1999), S. 305-307 
    ISSN: 1279-8517
    Keywords: Sacroiliac joint ; Disruption ; Reduction ; Anatomy
    Source: Springer Online Journal Archives 1860-2000
    Topics: Medicine
    Description / Table of Contents: Résumé Le but de cette étude anatomique est de décrire une voie d'abord originale permettant de contrôler directement la réduction d'une luxation de l'articulation sacro-ilaque (LSI), et de guider la mise en place de vis sacroilaques. La réduction d'une LSI est habituellement controlée par rapport à l'aspect du sacrum et de l'ilium du coté opposé au niveau du bord postérieur de la grande échancrure sciatique, mais il existe un manque de données sur le controle de la réduction d'une LSI au niveau de la partie postéro-supérieure de l'articulation sacro-iliaque. Dix cadavres ont été disséqués afin de définir la possibilité de contrôler la réduction d'une LSI au niveau du bord postéro-sup'erieur de l'articulation sacro-iliaque par une voie d'abord postérieure passant immédiatement en dehors de la masse musculaire sacro-lombaire et du cinquième processus transverse lombaire. Les résultats montrent que la partie postéro-supérieure de l'articulation sacro-iliaque et l'aile du sacrum peuvent être directement palpés ou visualisés. Cet abord permet un meilleur contrôle de la réduction d'une LSI et facilite la mise en place de vis sacro-iliaques.
    Notes: Summary This anatomic study was undertaken to describe a new posterior approach enabling direct inspection of reduction of sacroiliac joint disruption (SIJD), and guidance of iliosacral screw placement. The reduction of SIJD is usually monitored by inspection of the opposing sacrum and ilium at the posterior margin of the greater sciatic notch and there is a relative lack of information concerning inspection of reduction of SIJD from the posterosuperior aspect of the sacroiliac joint surface. Ten cadavers were dissected to determine the possibility of inspecting reduction of SIJD from the posterosuperior aspect of the sacroiliac joint by means of a posterior approach which passed immediately lateral to the deep back muscles and the fifth lumbar transverse process. The results indicated that the posterosuperior aspect of the sacroiliac joint surface and sacral ala can be directly palpated or visualised. This approach facilitates improved access for inspection of reduction of SIJD and guidance of iliosacral screw placement.
    Type of Medium: Electronic Resource
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  • 2
    Electronic Resource
    Electronic Resource
    Springer
    Protoplasma 109 (1981), S. 257-269 
    ISSN: 1615-6102
    Keywords: Acetabularia ; Dasycladalean green alga ; Flagellar roots ; Microtubules ; Striated fiber ; Phylogeny
    Source: Springer Online Journal Archives 1860-2000
    Topics: Biology
    Notes: Summary Ultrastructural investigation of the flagellar root system ofAcetabularia gametes reveals one type of organization for both male and female gametes. There is a modified cruciate system with four microtubular bands X-2-X-2, with X=4. A prominent distal striated fiber and a small proximal striated fiber connect the flagellar bases. A striated root fiber type I underlies the microtubular root type II, and a short striated root fiber type I underlies the microtubular root type I (terminology ofMelkonian 1980 b). This specific root system has some details in common with theChlamydomonas type, and others with theUlvaphyceae and the siphonalean algaeDerbesia andBryopsis. This might indicate the phylogenetic relationships.
    Type of Medium: Electronic Resource
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