Coloana - Generalitati
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Coloana
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3 curburi• Lordoza cervicala
• Cifoza dorsala
• Lordoza lombara
Anatomie - Generalitati
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Constituirea curburilor
Cele trei curburi sunt caracteristice ortostatismului
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Cervicala
Dorsala
Lombara
Morfologia vertebrelor
• Dimensiuni diferite• Forme diferite• Inclinarea fatetelor
25°
90°
60°
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Coloana de copil
Sectiune de coloana normala:- Canalul medular cu gauri de conjugare
-Grosimea discurilor aproape egala cu a corpilor vertebrali
- Nucleii foarte voluminosi
- Ligamentele intersomatice largi
- Ligamente voluminoase intre lame apofizele spinoase
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Coloana la copil Coloana la adult
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Canalul medular normal
Corpul vertebral
Canalul medular
Apofizele transverse
Apofizele articulare
Apofizele spinoase
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Canalul vertebral normal
Corpul vertebral
Maduva in interiorul canalului osos
Apofizele transverse
Apofizele articulare
Apofizele spinoase
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Discul intervertebral normal
Inel fibrosNucleu pulpos
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Discul normal
Discul este format din 70% apa si 30% proteoglicani
Inelul fibros
Nucleul pulpos
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Spatiul discal. Trepiedul vertebral
- Discul mentine spatiul dintre doua vertebre
- Posterior, apofizele articulare sunt in contact prin fatele acoperite de cartilaj
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Spatiul mobil - Junghans
Discul, cartilajele, ligamentele delimiteaza un spatiu mobil care are in centru elementele neurologice
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-Basculeaza in jurul centrului de rotatie situat in partea posterioara a discului- In extensie orificiile se micsoreaza
Miscarile de flexie-extensie
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Miscarile de flexie-extensie – reprezentarea radiografica
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Spatiul discal. Trepiedul vertebral
Incarcarea este suportata de corpii vertebrali si discul intervertebral
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Flexia-Extensia coloanei lombare in functie de varsta
Dupa TANZ Dupa ALLBROOK
Ultimele doua discuri lombare sunt cele mai mobile
ani
Raportat la miscarea globala
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Radiografia – tine cont de curburi
Din cauza curburilor este imposibil sa fie vazute in mod egal vertebrele si discurile
Gaura occipitala
Ant.
Axa generala a rahisului
Orizontala
Platoul sacrat
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Reperele rahisului cervical
Os Hioid (C3)
Cart. Cricoid
Tiroida (C6)
Tuberculul Chassaignac (C6)
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Mobilitatea rahisului cervical