Cervical Radiculopathy Myelopathy Flashcards
1
Q
Spinal
Motion theory: Flexion
A
- facets slide anterior/forward
- superior vertebrae anterior tilts, translates forward
- forward translation at the uncovertebral joints
- IV foramen enlarge
- spinal canal narrows but lengthens
- little change in overall volume
2
Q
Spinal motion theory
Extension
A
- facets, uncovertebral joints slide down and backward
- superior vertebrae tils, translates backward
- vertebrae can step on one another
- ligaments slackened
- ligamentum flava bulges into the canal
- IV foramen narrows
- spinal canal shortens and narrows
3
Q
Spinal motion theory
SB and rotation
A
- SB and rotation occur to the same side
- facets on SB slide down and backward bend
- facets on oppsite side slide up and forward
- upslide to downslide 2:1 ratio
4
Q
Cervical IV disc
A
- HNP disc does occur but less common in C/S than L/S
- PLL is thicker and broader invested in disc
- nucleus is less distinct and more fibrotic in nature
- as age tends to fragments
5
Q
Pathological degenerative process
DDD-aging
A
- loss of GAGs, dehydration, nucleus fragmentation
- intra-discal pressure falls
- loss of disc height
- ligamentous laxity
- annular radial bulging
- osteophytes form on vertebral bodies
- narrowed IV foramen, spinal canal
- may result in neurological S&S
6
Q
DJD
A
- DDD=> DJD
- over 50
- narrowing of IV foramen, spinal canal
- 1º due to C/S spondylosis (stenosis)
7
Q
C/S spondylosis
what is it and what happens
A
- stenosis
- increased forces. on osseous structures => DJD
- Facet joint arthropathy, osteophytes
- Uncovertebral joint osteophytes.
- Vertebral body osteophytes (lipping)
- Ligamentum flavum hypertrophy
- Decreased size of spinal canal & IV foramen
- Neurological S & S
8
Q
Lateral foramenal stenosis
causes
A
- DDD – nucleus fragmentation, loss of disc height, radial disc bulging
- DJD – Osteophytes on facets, uncovertebral jts
- Narrowing of IV foramen
- May result in hypomobility, hypermobility, instability
9
Q
Lateral foraminal stenosis
signs and symptoms
C/S
A
- LMN - Peripheral NR involvement:
- myotomal weakness
- sensory deficits in dermatomal pattern
- diminished reflexes
- Neurogenic pain and paresthesia
- neck, scapular, shoulder & arm regions
10
Q
Clinical prediction rule with cervical radiculopathy
A
- Spurling’s Test – to painful side
- Distraction Test—supine C/S distraction force (relief of symptoms)
- C/S rotation less than 60 degrees ipslaterally
- ULTT(+ test) Symptom reproduction
4/4 positive = 99% specificity; 3/4 positive = 94% specificity
11
Q
Central canal stenosis
causes- related to aging
A
- DDD =>DJD
- Ligamentum flava hypertrophy & bulging
- Increased forces on osseous spine structures
- Osteophytes - Facet, Uncovertebral joints, Vertebral bodies
- Osteophytic “lipping” of vertebral bodies protruding into spinal canal.
12
Q
besides degenerative processes what can cause central canal stenosis
A
- Congenitally narrowed canal
- Tumors
- Hypermobility / instability (grade 3)
13
Q
Central canal stenosis - cervical myelopathy
S&S
A
- B/L neurological S&S - perhaps in arms & legs
- Ataxic gait, loss of balance, proprioception
- Clumsiness in hands and LEs
- hypertonia
- hyperreflexia
- (+) Babinski,
- (+) Clonus
- (+) Hoffman’s sign
- (+) Inverted brachioradialis (supinator) reflex
14
Q
Hoffmans signs
A
indicates cervical myelopathy
flick index finger DIP
(+) test is flexion of thumb
15
Q
Inverted brachioradialis reflex
A
- tap brachioradialis
- normal response = elbow flexion
- abnormal = elicits wrist and finger flexion
- indicates UMN lesion at C5-C^