Week 2 Cervicothoracic spine Flashcards
Cervical spine
LoG passes posteriorly creating an extension moment
Thoracic spine
LoG passes anteriorly creating a flexion moment
Forward deviations of the head and neck result in
increased demand on the levator scapula and upper trapezius
Ruptured transverse ligament
破裂
- C1 can slide forward on C2, risking compression of the brainstem
- Common causes of rupture: Trauma, Rheumatoid arthritis, Down syndrome
- Halo-Thoracic brace
Costovertebral movements
- The ribs move in a ‘bucket handle’ motion during respiration
- Flexion, extension and coupled rotation/ lateral flexion
Neutral zone
- translational (accessory) movement is greatest
- relatively less tension in spinal ligaments
flexion - limit to movement (O/C1)
ligamentum nuchae
posterior atlantoaxial ligament
flexion - limit to movement (C1/C2)
ligamentum nuchae
ligamentum flavum
facet joint capsules
flexion - limit to movement (C2-C7)
ligamentum nuchae
ligamentum flavum
PLL
flexion - limit to movement (thoracic spine)
ligamentum flavum
PLL
facet joint capsules
rib cage
flexion - limit to movement (lumbar spine)
ligamentum flavum
facet joint capsules
posterior annulus
extension - limit to movement (O/C1, C1/C2)
passive tension in the anterior atlantoaxial ligament
extension - limit to movement (C2-C7)
contact of spinous process
ALL
anterior neck muscles
extension - limit to movement (thoracic spine)
contact of spinous process
ALL
anterior trunk muscles
extension - limit to movement (lumbar spine)
contact of spinous process
ALL
anterior trunk muscles
anterior annulus
rotation & lateral flexion - limit to movement (O/C1, C1/2)
alar ligaments
rotation & lateral flexion - limit to movement (C2-C7)
annulus fibrosis
rotation & lateral flexion - limit to movement (thoracic spine)
annulus fibrosis
facet joint capsules
intertransverse ligaments
rotation & lateral flexion - limit to movement (lumbar spine)
annulus fibrosis
facet joint capsules
intertransverse ligaments
iliolumbar ligaments
coupled movements
rotation and lateral flexion occurring simultaneously
muscle action
Using the cervicothoracic spine as a stable base, the musculature of this region supports and moves the upper quadrant and thoracic cage
Muscle attachments from the upper limb extend the length of the cervical and thoracic spines to allow a broad dispersal of forces, e.g. trapezius, latissimus dorsi
what is vertebral arteries
- branches of the subclavian arteries
- enter deep to the transverse process of C6
- pass upwards through the transverse process of each cervical vertebra until C1 and enter the skull via the foramen magnum
- the vertebral artery is vulnerable to stretch and trauma
- as it passes through the transverse foramen and passes posteriorly around the lateral mass of C1
- result in damage to the lining of the artery
risk factors for neck pain
female
previous episode of neck pain