LIGAMENTS AT SPINE (BIOMECHANIS OF SPINE)Physiotherapy Tutorial
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summary of the video with the time for reference:
1.Anterior longitudinal Ligament 1:16
C2 to Sacrum
Anterior atlanto occipital
Anterior atlanto axial
2 layers
superficial and deep
blends with anulus fibrosis
reinforces anterolateral portion of disc and body
well developed in lordotic regions like cervical and lumbar spine
high tensile strength in cervical region
gets compressed in flexion
stretches in extension
lax in neutral position
2.Posterior Longitudinal Ligament 5:46
C2 to Sacrum
C2 to occiput is called the tectoral membrane
2 layers
superficial and deep
blends with anulus fibrosis
In lumbar region the ligament narrows down
no proper support to the disc by thin layer of ligament
3.Ligamentum Flavum 8:15
C2 to Sacrum
connects lamina to lamina
C2 to occiput
Posterior atlanto occipital
Posterior atlanto axial
Creates a compressive force and stiffens the disc
4.Inter tansverse ligament 10:19
between two transverse ligament
highly variable
attach to deep muscle around the spine
lateral flexion compresses the ligament on same side and stretches on the opposite side
5.Inter spinous ligament 11:53
first one to get affected on hyperflexion
between two spinous processes
contributes to lumbar spine stability
6.Supraspinous ligament 13:41
first one to get affected on hyperflexion
between two spinous processes but more superficial
connects with the thoracolumbar region
in cervical region its called ligamentum nuchae
mechanoreceptors are present whos damage can affect the recruitment of stabilizers
#biomechanicsofspine
#spinebiomechanics
#vertebralcolumnbiomechanics