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Stenosis
Exam 2
78
Other
Graduate
03/05/2012

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Term
The gradual result of aging and "wear and tear" on the spine and/or a genetic predisposition to narrowing of the spinal canal.
Definition
Stenosis
Term
What is the last level of the spinal cord before it becomes the cauda equina?
Definition
L1
Term
With age, the disc space decreases in height and bulges posteriorly toward the spinal canal.
Definition
Disc Degeneration
Term
Outgrowth of the bone is known as
Definition
Spurring
Term
Joints of Luschka can degenerate and create what?
Definition
Pressure
Term
The facet joints and ligaments also enlarge and bulge toward where?
Definition
The spinal canal
Term
Where the ligaments of the spine can harden and thicken
Definition
Calcification
Term
Bones and joints may also enlarge when __ develops in the small joints of the spine (facets), and bone spurs (osteophytes) may form compressing nerves and the spinal canal.
Definition
Arthritis
Term
The slipping of one vertebra onto another, also may occur and lead to compression. "shearing effect"
Definition
Spondylolisthesis
Term
Acute stenosis =
Definition
Disc protrusion
Term
What is the most common problem of non-acute stenosis?
Definition
A combination of degenerative problems
Term
If a younger person had lumbar stenosis, what might cause this?
Definition
Congenital or acute cause
Term
The most common problem in the elderly population. More frequent found in men than women.
Definition
Lumbar Stenosis
Term
Pressure on the spinal canal causes cauda equina symptoms.
Definition
Lumbar stenosis
Term
Name 4 S&S of cauda equina syndrome.
Definition
1. Increase tonicity in the lower roots (H/S, G/S) due to irritability not spasticity
2. Weakness in the affected musculature
3. Some numbnessa nd tingling in legs
4. Pain early in the process of syndrome and less pain over time
Term
Decreased space results in decreased blood supply to nerves. This results in
Definition
Neuro claudication
Term
Lack of adequate blood flow may be the predominant reason for symptoms. Dural tissues and blood supply to the cauda equina is compromised. Pain is similar to a peripheral vascular diseases in some patients.
Definition
Neurogenic Claudication
Term
How is location of pain different between neurogenic and vascular claudication?
Definition
N = thighs, calves, back, rarely butt
V = buttocks or calves
Term
How is the quality of pain different between neurogenic and vascular claudication?
Definition
N = Burning, cramping
V = Cramping
Term
How are aggravating factors different between neurogenic and vascular claudication?
Definition
N = erect posture, ambulation, extension of spine
V = any leg exercise
Term
What are some relieving factors between neurogenic and vascular claudication?
Definition
N = Squatting, bending forward, sitting
V = Rest
Term
How are leg pulses and BPs different between neurogenic and vascular claudication?
Definition
N = usually normal
V = BP decreased; pulses decreased or absent; bruits or murmurs may be present
Term
How are skin/trophic changes different between neurogenic and vascular claudication?
Definition
N = Usually absent
V = Often present (pallor, cyanosis)
Term
How are autonomic changes different between neurogenic and vascular claudication?
Definition
N = Bladder incontinence (rare)
V = Impotence may coexist with other symptoms of vascular claudication
Term
This is typical in pts with a previous history of instability
Definition
Micro-instability
Term
Another suffested cause of increasing stenosis. Instability causes chronic inflammatin of the lumbar support tissues. Support tissues thicken or swell and osseous structures also hypertrophy due to continued stress. Combination causes impingement.
Definition
Micro-instability
Term
This is the most common stenosis. It is more common in men than women and usually affects ages 50-80.
Definition
Lumbar Stenosis
Term
Name the 2 types of lumbar stenosis
Definition
1. Those involving osseous structures
2. Those involving non-osseous structures
Term
Name 4 steps to the typical progression of lumbar stenosis dz.
Definition
1. Degenerative disc changes with narrowing of the disc space
2. Micro-instability leads to thickening of ligamentous tissues
3. Overload and subsequent overgrowth of the facets and contact creates osteophytes at edges of body of vertebra
4. Stenosis becomes progressive
Term
What are some congenital causes of lumbar stenosis?
Definition
Makes up a small subset of stenosis. Shallow lumbar canals due to thickened lamina, shortened pedicles, or excessive scoliotic or lordotic curves. Typically defined as canals between 10-12mm in diameter
Term
What is the normal measurement of canals?
Definition
15-18 mm
Term
Name 5 symptoms of lumbar stenosis.
Definition
1. Pain in back early in dz
2. Progression to pain into butt and becoming more peripheral
3. Cramping of HS and GS with activity (always feels tight)
4. Numbness, tingling, paresthesias, and weakness in LEs
5. Worse with activity and better immediately with rest or lumbar flexion
Term
What is the directional preference for someone who has lumber stenosis?
Definition
Flexion
Term
Name 5 additional symptoms of lumbar stenosis.
Definition
1. Pts walk with forward bent or stooped posture
2. Walking while leaning on assistive device usually helps
3. Better with biking or curling in a ball
4. Worse with any extension activities
5. Can progress to urinary or fecal incontinence (rare)
Term
Lumbar stenosis can also be confused with __ which is normally noticed in people in thier 20s-30s
Definition
De-myelinating dz
Term
Lumbar stenosis can be confused with __ __ caused by vessel-related dz which occurs in ppl in thier 20s-30s
Definition
Intermittent claudication
Term
__ of the canal can cause the same symptoms and can create a mass effect. Usually seen in 30s-40s.
Definition
Tumors
Term
Name 3 differential dx for lumbar stenosis.
Definition
De-myelinating dz
Tumors
Intermittent claudication
Term
Name 7 differential diagnoses for lumbar stenosis.
Definition
1. Conus medullaris and cauda equina neoplasms, and benign cystic lesions (weakness and will get worse)
2. Neural compression from metastatic dz to bone (cancer)
3. Centrally herniated discs (usually under 50 y/o)
4. Degenerative spondylolisthesis
5. Trauma/fractures
6. Epidural abscess (infection, fever)
7. Inflammatory arachnoiditis (fever)
Term
Name 4 types of testing to identify lumbar stenosis
Definition
-X-rays (osseous changes, loss is disc height, spondylolisthesis)
-CT Scans (great to reveal bony changes and bony tumors)
-MRI (most definitive for all soft tissue and bony encroachments)
-Myelogram (less commonly used due to complications of the dye and b/c it is invasive)
Term
Name 6 examination procedures done to see if pt has lumbar stenosis.
Definition
1. Check posture and curves
2. Examine for spondylolisthesis
3. SLR usually neg but H/S tightness
4. Neuro sensory testing usually negative in neutral positions
5. Exacerbates with ext or activity
6. Neural tension test can be positive
Term
ame 3 treatments for lumbar stensosi
Definition
1. Surgical
- Roto-router (clean out canal and fuse it)
- Posterior Laminectomy (take out post wall and fuse it)
- Laminectomy with fusion
2. Conservative
- PT and Rest
3. Combination
- Conservative (surgical intervention)
- Most effective with significant stenosis
Term
How can lumbar stenosis be treated with exercise?
Definition
1. Flexion exercises (lumbar tx in flexion)
2. Mobilization/manipulation general LE strengthening (neural mobs and weight-assisted walking program)
Term
Persons needing this are older and have more complications. It is aggressive and recovery is slow.
Definition
Lumbar Laminectomy
Term
What are some PT interventions for lumbar stenosis?
Definition
-Need to treat cause of stenosis
-Instability needs stabilization
-Degenerative dz responds well to traction
-Flexion and H/S stretching are important
-Stretch so the scar tissue will not cause contracture
Term
Results are variable. Its helpful with pts with combination of DDD and DJD in lumbar.
Definition
Lumbar Traction
Term
How is traction performed in the lumbar?
Definition
-90/90 positioning (b/c u want flexion)
-Pelvic harness only (b/c stabilizing upper torso is not important)
-Intermittent only (want motion not a steady stretch)
-How long? On 60 Off 20
-How strong? all studies are diff
Term
Name 3 UMN symptoms
Definition
Spasticity
Increased tone
Hyper-reflexia
Term
Which is more serious: lumbar or cervical stenosis?
Definition
Cervical
Term
Cord is dense and thick here and extra space in foramen is minimal
Definition
Cervical
Term
Compromise of space in the c-spine causes __ symptoms in trunk and LE as well as __ symptoms in the UE
Definition
UMN
LMN
Term
In this area the discs sit in a bowl and the lateral sides are higher
Definition
Cervical
Term
What are some tissues that compromise in cervical stenosis?
Definition
-Very common to have involvement of PLL and lig flavuum
-Facets and uncovertebral joint overgrowth
-Osteophytes of the posterior body of the vertebra
(Disc may cause PLL to protrude)
Term
Just as common in females a males. Instability is an extremely strong aggravating factor.
Definition
Cervical Stenosis
Term
Name 5 reasons for cervical stenosis.
Definition
1. Congenital (end ROM and compression of disc)
2. Degeneration
3. Spinal instability (b/c ligs take all the load)
4. Disc herniation (almost always goes post/central which makes PLL protrude)
5. Constriction of the blood supply to the SC
Term
The bony spinal canal normally has more than enough room for the SC. Typically the canal is __ mm around.
Definition
17-18 mm
Term
Spinal stenosis occurs when the canal narrows to __ mm or less.
Definition
13mm
Term
When the canal narrows to __ mm, severe symptoms of myelopathy occur.
Definition
10mm
Term
Pathology of the SC which manifests of LMN of UE and UMN of LE.
Definition
Myelopathy
Term
How does cervical stenosis progress?
Definition
-Most common in spines with instability
-Dz is very slow in progression over time and is usually precipitated by injury
-Symptoms are a mix of lower and upper motor neuropathies
-Can be easily confused with MS except for the typical age of the pt
Term
What are the typical symptoms of cervical stenosis?
Definition
UMN myelopathy refers to dysfunction of the long tracts of the SC
Term
UMN myelopathy may manifest as: (6)
Definition
Weakness
Spasticity (below injury level)
Sensory Loss
Position sense loss
Incontinence (or continence change)
Impotence
Term
Where is a common site of instability in the c-spine?
Definition
C4-6
Term
LMN Symptoms: All of the following occur in the UE at or near the level of involvement of the stenosis:
Definition
Numbness
Tingling
Weakness
Parasthesias
Pain
Term
What are some tests and measures that can be done to dx cervical stenosis?
Definition
-Neurological testing for UE and LE for both UMN and LMN lesions
-Neck pain and reproduction of pain and symptoms with motion and resistance
-PIVM of the cervical looking for hyper-mobility or OA end feel with testing
-Compression would be worse and distraction better.
-Increase S&S at end range
-Pain with any Cervical motion
Term
What are the typical treatments for cervical stenosis?
Definition
Surgery is most common
Term
What are the 3 types of surgeries done for cervical stenosis?
Definition
1. Cervical laminectomy with fusion (releases pressure around cord and is common for myelopathy)
2. Anterior body fusion
3. Corpectomy and strut graft
Term
What are some conservative care approaches for cervical stenosis.
Definition
PT
Bracing and Splinting
-Both are used to stabilize the cervical to reduce the effects of the instability of ligamentous and bony tissues
-Not sure that strengthening the musculature is effective after the pt has myelopathy
Term
Is traction good for cervical stenosis?
Definition
Yes
Term
Why would you do modalities for cervical stenosis?
Definition
Decrease pain
Term
Intermitten cervical traction is the only thing that is not contraindicated for this.
Definition
Myelopathy
Term
< 60 degrees rotation to involved side. Cervical traction. Spurling's test. VLTTA
Definition
Radiculopathy
Term
In ___ stenosis, if __ problems are manifest with UMN complications, a surgical referral would be the best solution but you could try intermittent traction.
Definition
Cervical (for both)
Term
In __ stenosis, if only LMN symptoms, conservative care is the best early treatment.
Definition
Cervical
Term
In __ stenosis, if symptoms are present and progressive, conservative care would be the best solution for tx and referral should be delayed until after a significant attempt at conservative management.
Definition
Lumbar
Term
Lumbar stenosis at __ mm or less
Definition
12 (normal is 15-18)
Term
Cervical stenosis at __ mm or less
Definition
13 (normal is 17-18)
Term
Treatment for lumbar is primarily __ and cervical is primarily __
Definition
Conservative
Surgical
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