2 Cervical Spine Flashcards
What (additional) facet joints are often included in the examination of the C-Spine?
four facet joints in 2 upper thoracic vertebrae (T1-T2)
In which direction do superior facets of C-spine face? Inferior facets?
- sup: superiorly, posterior and medially
- inf: inferiorly, anterior and laterally
rotation and side flexion in the c-spine requires ___ ___ between bilateral facet joints
coupled movement
What’s normal lordotic curve of c-spine?
30°-40°
Where does greatest flexion-extension occur in c-spine?
C5-C6 (hence most commonly injured/degenerated level)
TVPs of c-spine are made up of 2 parts. These are:
- anterior portion: provides the foramen for the vertebral artery
- posterior portion: containing articular facets
What’s the aka for the upper cervical spine?
cervicoencephalic spine
Which segments have no discs in the c-spine?
C0-C2
What are the movement ranges for the atlanto-occipital joint (C0-C1)?
- flexion-extension: 15°-20°
- lateral flexion 10°
What are the movement ranges for the atlanto-axial joint (C1-C2)?
- flexion-extension: 10°
- lateral flx: 5°
- rotation: 50°
What’s the aka for a pivot joint?
trochoid joint
What’s the first palpable SP of the c-spine?
C2
What’s the aka for lower cervical spine?
cervicobrachial spine
What vertebrae are included in the cervicobrachial/lower c-spine?
C3-C7
What are available movements of the atlanto-occipital joint?
- flx
- ext
- lat flx
What are available movements of the atlanto-axial joint?
- flx
- ext
- rotation
What are available movements of the intracervical region joints (C2-C7)?
- flx
- ext
- rotation
- lat flx
What’s resting position of the c-spine?
midway between flexion and extension
What’s close packed position of the c-spine?
full extension
What’s the capsular pattern for the c-spine (in order of most to least limited motions)?
- side flexion and rotation (equally limited)
- extension
Radicular symptoms do not go down the arm for a __ nerve root injury and above
C4
What are the Grades of the Watkins Severity Scale: Neurological Deficit?
- Unilateral arm numbness or dysesthesia; loss of strength
- Bilateral upper extremity loss of motor and sensory function
- Ipsilateral arm, leg, and trunk loss of motor and sensory function
- Transient quadraparesis (temporary sensory loss in all 4 limbs)
- Transient quadriplegia (temporary motor loss in all 4 limbs)
What are the Grades of the Watkins Severity Scale: Time Symptoms Present?
- Less than 5 mins
- Less than 1 hour
- Less than 24 hours
- Less than 1 week
- Greater than 1 week
What are the Grades of the Watkins Severity Scale: Central Canal Diameter
- > 12 mm
- Between 10-12 mm
- 10 mm
- 8-10 mm
- < 8 mm
What are rule outs for the c-spine?
- TMJ: 3 knuckle test
- Shoulder tests (just flexion and abduction [palm down until 90° then palm up for rest of abduction]) with overpressure
- VBA (vertebral basilar artery)
How is the vertebral basilar artery test performed?
Px supine, passively extend, laterally flex and ipsilaterally rotate head and have them count to 30. Watch eyes for abnormal movements and listen for alterations in verbal count. (or can do with patient seated doing neck movements actively)
What’s average flexion range for the c-spine?
80°-90°
What’s average extension range for the c-spine?
70°
What’s average lateral flexion range for the c-spine?
20°-45° each way
What’s average rotation range for the c-spine?
70°-90° each way
Overpressure is applied at end of all c-spine movements except…
extension
Where are the best places to palpate the neck during flexion?
- C0-C1: between mastoid process and TVP of C1
- C1-C2: palpate arch of C1 and SP of C2
- Rest of cervical spine: between SP at each level
What’s normal end feel for neck flexion, extension, lateral flexion and rotation?
all: tissue stretch
During ARROM, weakness without pain suggests:
nerve root problems (myotome)
What muscles perform flexion at the head?
- rectus capitis anterior
- rectus capitis lateralis
- longus capitis
- hyoid muscles
What muscles perform flexion at the neck?
- longus colli
- longus capitis
- infrahyoids
- suprahyoids
- scalenes ant/post/med
What muscles perform extension at the head?
- splenius capitis
- semispinalis capitis
- longissimus capitis
- spinalis capitis
- trapezius
- RCP min/maj
- obliquus capitis sup/inf
What muscles perform extension at the neck?
- splenius cervicis/capitis
- semispinalis cervicis
- longissimus cervicis
- illiocostalis cervicis
- spinalis cervicis
- interspinalis cervicis
- trapezius
- RCP Maj
- Rotatores