Cervical Spine PPT
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22 Terms
AO joint
C1/atlas has concave R and L superior facets
skull has convex R and L occipital condyles
AA joint
median joint: odontoid process of C2/anterior facet on dens contacts facet on internal surface of atlas/C1
2 lateral joints: C2 R and L concave superior facets contact C1 R and L slightly convex inferior facets
flexion; extension
the AO joint provides ____ and ___ mainly but also limited rotation and lateral flexion
flex/ext, lateral flexion, and rotation
the AA lateral joints provide what motions?
rotation
the AA median joint provides what motion?
50%
what percent of cervical rotation occurs at C1-C2?
same; opposite
in the AO joint:
- the occipital condyles roll ____ and glide ____ of head movement
pivots
the AA joint ____ for rotation
extension = lateral flexion
what is the capsular pattern for the AO joint?
intervertebral joints
adjacent superior and inferior vertebral bodies and intervertebral discs
zygapophyseal/facet joints
R and L superior and inferior articular facets on adjacent vertebral processes
inferiorly; anteriorly
the inferior facet of superior vertebrae is oriented ____ and ____
motion
the angle of the facets and spinous processes affects the amount of ____
excessive
spinous processes limit ____ motion
flex/ext, lateral flexion, and rotation
C2-C7 combined provide what motions?
equal limitations in all motions except flexion
what is the capsular pattern for motion of C2-C7?
anterior slide and tilt
what are the arthrokinematics for cervical flexion of the superior vertebral body?
slide anteriorly and superiorly
what are the arthrokinematics for cervical flexion of the inferior facets of the superior vertebra?
posterior slide and tilt
what are the arthrokinematics of cervical extension of the superior vertebral body?
slide posteriorly and inferiorly
what are the arthokinematics of cervical extension of the inferior facets of the superior vertebra?
slides posteriorly and inferiorly on side of motion and opposite on other side
what are the arthrokinematics of cervical lateral flexion and rotation of the inferior facets?
greater restriction in lateral flexion to opposite side and rotation to the same side
what is the capsular pattern for unilateral facet involvement?
