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Samenvatting MSK 3 - Lumbale wervelkolom - D Lambeets $7.56
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Samenvatting MSK 3 - Lumbale wervelkolom - D Lambeets

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Samenvatting MSK, Lumbale wervelkolom, gedoceerd door Dirk Lambeets

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  • May 5, 2021
  • 9
  • 2020/2021
  • Summary
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De lumbale wervelkolom – D. Lambeets
Inleiding


Specifieke vereisten

• Draagfunctie
• Afschuifkrachten

Specifieke eigenschappen

• Morfologie corpus
• Morfologie en oriëntatie facetten LWZ
• Lumbale lordose


Morfologische kenmerken
• Corpus
• Discus
• Morfologie en oriëntatie facetten LWZ
• Lumbale lordose

1. Corpus

• Niervormig
• Dwarse diameter > AP diameter
• Rechthoekig in sagittaal vlak
• Corpus L5 = wigvormig in sagittaal vlak
• Proc spinosi
o Relatief hoog
o Hoogte verschilt/ persoon
o +/- op gelijke hoogte met corpus
• Proc costarii (= proc transversi)

2. Discus

• Discushoogte/ corpushoogte: 1/3
• Hoogte discus neemt toe van L1 – L4
• Discus L5 wigvormig

, 3. Facetgewrichten

Gevormd door

• Facies articularis superior
• Facies articularis inferior

Kenmerken facetten LWZ

• Grote verscheidenheid in morfologie en oriëntatie
• Dwarse afstand tussen facetten neemt toe naar caudaal

3.1. Morfologie lumbale facetten

Grote verscheidenheid van morfologie

• Inter – individueel
• Intra – individueel
• Asymmetrie

In frontale vlak lijken ze vlak te zijn en volledig in sagittaal vlak te liggen

In transversaal vlak: niet het geval; deel in frontaal vlak en deel in sagittaal vlak



Facies art sup: concaaf of vlak

Facies art inf: convex of vlak



Onderscheid tussen

• Vlakke
• Gekromde: C- of J-vormig

à Vlakke en gekromde facetten komen op alle niveaus voor


3.2. Oriëntatie lumbale facetten

Grote verscheidenheid van oriëntatie

• Algemene gemiddelde oriëntatie
o Facies art sup: dorsaal en mediaal
o Facies art inf: ventraal en lateraal
• Variaties van oriëntatie lumbale facetten
• Asymmetrie facetten
• Naar caudaal: oriëntatie meer in frontaal vlak
• Oriëntatie facetgewrichten bepalen weerstand vooral tegen voorwaarts transleren

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