Cervical Spine Flashcards
Applied Anatomy: Nerve Roots
8 Nerve Roots (C1-8)
In c-spine nerve roots exit ABOVE the corresponding vertebrae
Applied Anatomy: Intervertebral Discs
(4)
- NO disc between C0-1 & C1-2
- Discs at C2-C3 & below
- Slightly thicker anteriorly, contributes to lordosis
- Discs are relatively thin in C-spine allowing for greater mobility
Cervical Rediculopathy
A condition describing a group of signs & symptoms related to a compressed or irritated nerve root
MIDDLE = cervical Myelopathy
- S/S of an UMNL
POSTERIOR/LATERAL = nerve root
Cervical Rediculopathy: Etiology
(3)
- Disc Herniaton
Dynamic Disk Theory = material inside the disk is dynamic - can move (nucleus pulpous) from HIGH > LOW pressure - & goes for the path of least resistance - Stenosis
- Osteophytes
- Spondylosis - degeneration of the spine - disc (less hydrated - thinner) = IVF narrows = less space for nerve roots
- Ligament Thickening - ligamentim flavum- leads to CENTRAL stenosis - Swelling & inflammation (from local trauma)
Messy & unclear
Physical Examination: Neuro Scan
Performed when there are S/S present that are neurological OR you want to rule out C/S (unsure what is occuring)
- Dermatomes: any area of the skin supplied by a single nerve root
- Myotomes: a group of mm supplied by a single nerve root
- Reflexes: an involuntary & almost instant response to a stimuli
- Special Tests
What direction do you test dermatomes in?
Proximal > Distal
Start w/ light touch, if impaired > may test area with crude touch (sharp/dull) or temperature (hot/cold)
Reflexes: What to do if unable to elicit a response?
(2)
- Use Jendrassik Manuever
L/E - cross legs & pull ankles apart
U/E - clasp ahnds & try to pull them apart
Ask patient to close their eyes & count backwards
** Distract pt so they will relax
UMN Reflexes: Positive Findings
(2)
Positive findings indicates a possible lesion of the spinal cord, brainstem, or brain
Clonus: quickly & forcefully DF the ankle AND HOLD in the fully DF’ed position
Abnormal response: Sustained clonus of 5 beats or more
Babinski Reflex: run a pointed objected along the lateral aspect of the foot, from the heel & across the ball of the foot
Abnormal Response: splaying of toes &/or extension of big toe
Special Test: Cervical Distratction
Test is used when a patient is currently experiencing radicular symptoms
PT places one hand under the chin & the other hand around the occiput, lifts upward to apply a traction to the c-spine
(+): Radicular symptoms decreased or abolished
Special Test: Spurling’s (Foraminal Compression Test)
Therapist applies a axial load by pressing straight down on patient’s head
If no symptoms occur whille head is in neutral progress to:
1. Extension + rotation to unaffected side, then extension + rotation to affected side
Closing the IVF down even more
2. Side flexion to affected side - contralateral (may alleviated S/S slightly)
(+) = reproduction of radicular symptoms (towrds the side of side flexion)
Special Test: Spurling’s (Foraminal Compression Test)
Therapist applies a axial load by pressing straight down on patient’s head
If no symptoms occur whille head is in neutral progress to:
1. Extension + rotation to unaffected side, then extension + rotation to affected side
Closing the IVF down even more
2. Side flexion to affected side - contralateral (may alleviated S/S slightly)
(+) = reproduction of radicular symptoms (towrds the side of side flexion)
Upper Limb Tension (Neurodynamic) Tests
Test unaffected side first - compare both sides
1. Shows pt what they should expect to feel - avoid getting false (+)
Order of limb positioning shoulder > forearm > wrist > fingers > elbow (< easy joint to calculate angle - objective measure)
Neurolgoical tissue is differentiated by adding sensitizing test (contralateral C-spine side flexion). Alternatively, relieving test may be used (ipsilateral side flexion)
(+) = productiion of radicular symptoms
ULTT 1:
Nerves & Positions
Median, anterior interossesous nerve, C5-6-7
- Shoulder depression & abduction (110)
- Forearm supination
- Wrist extension
- Finger & thumb extension
- Elbow extension
ULTT 2
Nerves & Position
Median nerve, musculocutaneous nerve, axillary nerve
- Shoulder depression & abduction (~10)
- Forearm supination
- Wrist extension
- Fingers & thumb extenson
- Elbow extension
ULTT 3:
Nerve & Position
Radial Nerve
- Shoulder depression & abduction (~10)
- Forarm pronation
- Wrist flexion & UD (tensioning nerve)
- Fingers & thumb flxion
- Elbow extension
ULTT 4:
Nerve & Position
Ulnar nerve, C8 & T1 nerve roots
- Shoulder depression & abduction (10-90)
- Forarm pronation (or supination)
- Wrist extension & radial deviation
- Finger & thumb extension
- Elbow flexion
Cervical Radiculopathy: Interventions
Stenosis: open up intervertebral foramen (ie. traction, flexion, etc)
- Offload nerve initially & then gradually return to neutral
- FLEX = open, EXT = closed, CONTRA SB (May not work if it stretches the nerve)
Disc Herniation: Retraction progressions (lower c-spine extension)
- Most ppl generally respond - assess directional preference
- Retraction = chin tuck = C3-7 extension ~ causes dick to migrate back (High > low pressure)
- Retraction + extension = progression (sligh ext into more ext)
Brachial Plexus Injuries: Erb-Duchenne Paralysis
Injury to upper nerve root C5-C6 (Upper brachial plexus) causing paralysis of the arm (shoulder & elbow)
Muscles of the hand are not affected
“Waiter’s Tip” position:
- Shoulder IR
- Elbow extension
- Forarm pronation
Sensation over deltoid area & radial surface of forearm & hand are affected
Most commonly d/t shoulder dystocia during birth
- Head exits the canal but shoulders get stuck - traction injury b/c head is getting pulled - LATERAL traction
Brachial Plexus Injuries: Klumpke’ Paralysis
Injury to lower nerve roots C8 & T1 (lower brachial plexus) causing weakness & paralysis in the muscles of the forarm, hand, & triceps
Due to involvement of T1, Horner’s syndrome with ptosis (drooping eyelid) and miosis (excessive pupil constriction) may develop
Position:
- Elbow flexion
- Forearm supination
- Wrist & MCP extension
- PIP & DIP flexion
Causes claw hand d/t involvement of ulnar nerve
Sensation over ulnar side of forearm and hand IS affected
Most commonly due to difficulties in childbirth
- Often d/t traction on an abducted arm as the child is being pulled out during birthing
** May also occur with arm traction as a result of grabbiing a hold of something as one is falling
Facet Syndrome
Typically pain is worse with compression stress on the facet joints
- Pain may refer into neck &/or scapular region
- May be tested using coupled or combined movements (physiological & non-physiological
Facet Syndrome:
Physiological Mvmt
Normal arthrokinematics of that region of the spine
The facet joint guide the movements in that region of the C/S - shape & orientation
C/S facet joints are angled towards the eyes
D/t the orientation of the facet joints in the C/S, side bending & rotation occur towards same side (this is normal arthokinematics of the spine)
Coupled movements into extension may be used to rile out facet joint involvement
Facet Syndrome:
Non-Physiological Mvmt
Non-physiological coupled movements are movements that oppose the normal athrokinematics of that region of the spine - may cause additional SHEARING forces
Side-flexion & rotation are performed in opposite directions
Non-physiological movements are potentially more symptom provocative & should only be performed when physiological movements are full & pain free
Vestibulobasilar Insufficiency (VBI)
Compression of the vertebral artery = DEC BF & ischemia to the brain - specifcally to areas of the brainstem (pons, medulla, & cerebellum)
5 Ds
- Diplopia (Double / blurred vision)
- Dizziness
- Dysphagia (Difficulty swallowing)
- Dysarthria (Difficulty speaking)
- Drop attacks (loss of power or consciousness)
3 Ns
- Nausea
- Nystagmus
- Neurological symptoms (other)
Special Test: Vertebral Artery (Cervical Quadrant) Test
- Patient is positioned in supine
- Therapist passively takes patients head & neck into extension & side flexion & holds for 10-30 seconds
If no symptoms are produced, ipsilateral neck rotation is added & posiiton is held for 10-30 seconds
** EYES OPEN thoughout test
(+) = Dizziness or nystagmus. This indicates that the contralateral side artery is being compressed
- Tensioned & getting compressed as it passes through the canal