Test 1 Flashcards
of vertebrae lumbar spine
5
how do lumbar vertebrae differ
larger size
absence of costal facets
*Designed for load bearing upon the VB (anterior elements)
Why may there be less / more lumbar vertebrae?
L5 can sacralize/ fuse with S1
can have an extra vertebrae
Spinous Process of Lumbar Vertebrae
–shape
–orientation
–its job
large and rectangular
have bulbous tip
almost horizontal
extended posteriorly
provide attachment for fascia, muscles and ligaments
What is key characteristic of a lumbar vertebrae:
- SP
- why important
wide and rectangular spinous processes:
important because of attachments of muscles, fascia, ligaments, WB, maintain lordosis
What facet orientation would favor flexion /extension physiological movements?
sagittal plane
we would not be able to do rotation as easily, as rotate open facets on side to which we rotate
Which ligament resists flexion of the lumbar spine?
PLL:
restrict flexion
(longest lever arm to resist flexion is the interspinous—skinny but longer lever arm than the supraspinous even though supraspinous is wider)
What ligament goes slack as go into flexion?
ALL
What segments will not add much to lumbar rotation and why?
orientation changes and L5 on S1 is more of a frontal plane,
L4-L5-S1 orientation-we have the lumbosacral ligaments to help support the area
Peripheral annular bulge?
NR damage minimal because not pinching nerves
Bony Architecture of the lumbar Spine
- # vertebra
- Differ because of their l____
- designed for load-bearing upon ____
- ___ can sacralize
- can have extra vertebrae
- Five vertebra
- Differ because of their larger size and absence of the costal facets
- designed for load-bearing upon the vertebral bodies (anterior elements)
- L5 can sacralize: fuse with S1
- can have extra vertebrae
Lumbar Spinous processes
- Size and shape
- Orientation
- Role
- Large and rectangular, Have bulbous tip
- Extended posteriorly, Almost horizontal
- Provide attachment for fascia, muscles, and ligaments
Lumbar TP
- Shape
- which one is the longest
- Which way does L1-L4 face?
- Which way does L5 face?
- what type of accessory process?
- Long and thin except for L5
- L3 is the longest (generally)
- L1-L4 pass laterally and backwards
- L5 passes laterally and then upwards and slightly backwards
- Small tough accessory process
Lumbar TP:
Which one is not long and thin?
L5
Lumbar TP:
Which one is longest?
L3
Lumbar TP:
which way does L1-L4 pass?
LATERALLY and BACKWARDS
Lumbar TP:
Which way does L5 face?
passes LATERALLY, then UPWARDS, then slightly BACKWARDS
Lumbar TP
What type of accessory process?
small and tough
Lumbar Articular Process
What type of joint?
what cartilage?
how many processes?
- DIARTHRODIAL JOINT with synovial membrane and capsule
- Joint surfaces are covered with hyaline cartilage
- Superior articular processes
- Inferior Articular processes
Lumbar Articular Process
What is on the joint surfaces?
Hyaline Cartilage
Lumbar Articular Process
What type of joint?
DIARTHRODIAL JOINT with synovial membrane and capsule
The facet is a synovial joint and so it will have synovial lining, it is all encased around hylaine cartilage and then encased in the capsule.
sometimes that can fray or desiccate a little and get put into the joint interspace and cause abnormal mechanics so you may not have a movement issue or may due to pain.
may find hypomobility in stiff spine or hypermobility in lax spine.
if have a surgical see what messes up the mechanics of the joint and how to improve them.
The facet is a synovial joint and so it will have synovial lining, it is all encased around hylaine cartilage and then encased in the capsule.
sometimes that can fray or desiccate a little and get put into the joint interspace and cause abnormal mechanics so you may not have a movement issue or may due to pain.
may find hypomobility in stiff spine or hypermobility in lax spine.
if have a surgical see what messes up the mechanics of the joint and how to improve them.
What happens if the facet joints are loaded more than the VB?
If facet joints loaded more than VB we need to restore lumbar lordosis to redistribute the weight to the VB
What happens if ligamentum flavum becomes lax?
Ligamentum Flavum is more posterior and is elastic but overtime can become lax and fold into the spinal canal and cause compromise of the spinal canal
— degeneration of discs or facets can cause it to lose elasticity, can get into spinal canal and can cause NR dysfunction
Superior Articular Processes
- Concave or convex?
- Orientation:
- Mammillary process
- Slightly concave
- Face medially and posteriorly
- Posterior border has rough elevation called the mammillary process
Is superior Articular Process concave or convex?
slightly concave
orientation of superior articular process?
MEDIALLY and POSTERIORLY
Which articular process has the mamillary process? What is it?
Superior articular process
it is a rough elevation on the posterior border
Inferior Articular Process
1. Concave or convex?
- Orientation:
- Slightly Convex
2. Face laterally and anteriorly
Articular facets are reciprocally ____ superiorly and _____ inferiorly
Articular facets are reciprocally concave superiorly and convex inferiorly
Is inferior Articular Process concave or convex?
Convex
Orientation of inferior articular process?
LATERALLY and ANTERIORLY
Facet Joints: how does alignment change at lumbosacral joints?
Change from SAGITTAL orientation to more CORONAL (frontal) orientation at the lumbosacral joints
Lumbar: Vertebral body:
shape and size
is it wider or deeper
is it broader or higher
- Large
- Kidney shaped
- Wider than deep
- Broader than high
Shape of vertebral canal
shape of equilateral triangle
Larger than thoracic spine
Smaller than cervical spine
Where is the vertebral canal largest/smallest?
Thoracic –> Lumbar –>Cervical (largest)
Discs make up about ___% of total length of vertebral column
Discs make up about 20-25% of total length of vertebral column
Function of the IV Disc (3)
- Binds together vertebral bodies
- Permits movement within segment
- Transmits loads from one vertebral body to the next
Disc Material: fluid nucleous propulsus
as sidebend to the right: where will pressure change be greater?
change of pressure will be greater to the left,
Disc Material: fluid nucleous propulsus
As go into flexion: where will pressure change be greater?
As go into flexion the change in pressure will be more posterior
Disc Material: fluid nucleous propulsus
As go into extension: where will pressure change be greater?
As go into extension he change in pressure will be more anterior
Disc Material: fluid nucleous propulsus
Rotation
With rotation get more compressive affect due to annulus criss cross fibers
Disc Material: fluid nucleous propulsus
as sidebend to the left: where will pressure change be greater?
change of pressure will be greater to the right
Role of ligaments (3)
- Principle role is to prevent excessive movement
- Principal tensile load bearing elements
- Provide information about posture and movement
Which ligament has the longest lever arm?
longest lever arm is the:
SUPRASPINOUS LIGAMENT
then the interspinous
and then the PLL
Vertebral Motion (2)
- The motion segment: two adjacent vertebrae and their intervening disc and associated ligaments
- In normal motion segment: these three parts are anatomically linked and mechanically balanced
What is a motion segment for vertebrae? (3)
TWO adjacent VERTEBRAE and their intervening DISC and associated LIGAMENTS
In normal motion segment: these three parts are anatomically linked and mechanically balanced
Significance of TWO adjacent VERTEBRAE and their intervening DISC and associated LIGAMENTS
Motion segment
In normal motion segment: these three parts are anatomically linked and mechanically balanced
Motion Segment : what may occur with age?
With age, degeneration may affect motion segment
with age more difficulty ie excursion of bone in VB or facet or IV foramen can mess up mechanics as well—get a sense of whether there will be a movement issue involved —not changing the bony change but can relieve the stresses
Motion segment: how is motion named?
Motion is named by direction of SUPERIOR vertebrae
What can occur if there is dysfunction in one part of segment?
Dysfunction in one part of segment may lead to dysfunction elsewhere
Flexion: Forward Bending
1) How do the facets glide?
2) Is it roll/glide?
3) what occurs at the facet joint?
4) which ligaments on slack?
5) which ligaments on stretch?
6) where does the nuclear material go?
- Inferior facet of superior vertebrae glides anteriorly and superiorly (upwardly) over superior facet of inferior vertebrae
- Combination of anterior roll and anterior glide of superior vertebral body
- creates an opening at facet joint as inferior facet of superior vertebrae moves superiorly
- Slack: ALL
- Stretch:
(1) PLL
(2) Ligamentum Flavum
(3) Interspinous Ligament
(4) Supraspinous Ligament - Nuclear material shifts posteriorly (pressure changes)
Flexion: Forward Bending
How do the facets glide?
Inferior facet of superior vertebrae glides anteriorly and superiorly (upwardly) over superior facet of inferior vertebrae
Flexion: Forward Bending
Is it roll/glide?
Combination of anterior roll and anterior glide of superior vertebral body
Flexion: Forward Bending
what occurs at the facet joint?
creates an opening at facet joint as inferior facet of superior vertebrae moves superiorly
Flexion: Forward Bending
which ligaments on slack?
Slack: ALL
Flexion: Forward Bending
which ligaments on stretch?
Stretch:
(1) PLL
(2) Ligamentum Flavum
(3) Interspinous Ligament
(4) Supraspinous Ligament
Flexion: Forward Bending
where does the nuclear material go?
Nuclear material shifts posteriorly (pressure changes)
Extension: Backwards bending
- How do facets glide?
- What happens at the facet? (open/close)
- Creates
a) Slack:
b) Stretch: - Nuclear material shifts where?
- Inferior facet of superior vertebrae glides inferiorly and posteriorly upon superior facet of inferior vertebrae
- Creates “closing” at facet joint
- Creates
Slack:
(1) PLL
(2) Ligamentum Flavum
Stretch:
(1) ALL
- Nuclear material shifts anteriorly
Extension: Backwards bending
How do facets glide?
Inferior facet of superior vertebrae glides inferiorly and posteriorly upon superior facet of inferior vertebrae
Extension: Backwards bending
What happens at the facet? (open/close)
Creates “closing” at facet joint
Extension: Backwards bending
which ligaments on slack?
(1) PLL
(2) Ligamentum Flavum
Extension: Backwards bending
which ligaments on stretch?
(1) ALL
Extension: Backwards bending
Where does the nuclear material shift?
Nuclear material shifts anteriorly
Sidebending:
- what motion is coupled with sidebending?
- What opens? Explain the slide
- What closes? Explain the slide
- Where does right side bending cause closing and opening?
- Which side approximates?
- Where is nuclear material displaced?
- Which ligaments are stretched?
- Coupled with rotation
- Inferior facet of superior vertebrae slides upward on contralateral side causing “opening”
- Inferior facet of superior vertebrae slides downward on ipsilateral side causing “closing”
- Example: RSB causes closing, right facet pair and opening left facet pair
- Interspace on ipsilateral side approximate
- Nuclear material displaced toward contralateral side
- Contralateral ligamentum flavum and Intertransverse Ligament are stretched
Sidebending:
what motion is coupled with sidebending?
Coupled with rotation
Sidebending:
What opens? Explain the slide:
Contralateral side opens
Inferior facet of superior vertebrae slides upward on contralateral side causing “opening”
Sidebending:
What closes? Explain the slide
Ipsilateral side closes
Inferior facet of superior vertebrae slides downward on ipsilateral side causing “closing”
Sidebending:
Where does right side bending cause closing and opening?
RSB:
causes closing, right facet pair
opening left facet pair
Sidebending:
Which side approximates?
Interspace on ipsilateral side approximate
Sidebending:
Where is nuclear material displaced?
Nuclear material displaced toward contralateral side
Sidebending:
Which ligaments are stretched? (2)
Contralateral
- ligamentum flavum
- Inter-transverse Ligament
Rotation
- What slides in the vertebrae?
- What limits ROM?
- Is direction of rotation named according to upper or lower vertebrae?
- Is rotation named according to VB or SP?
- with what motion is rotation coupled?
- Where is the gap? Compression?
- Occurs when upper vertebrae slides over lower vertebrae
- Shearing forces limit ROM
- Direction of rotation is named according to upper vertebrae moving on lower vertebra
- Named according to the direction of the body and not the spinous process
- Coupled with Side-bending
- Rotation causes a gap on the ipsilateral facet joint and compression on the contra-lateral facet joint
Rotation
What slides in the vertebrae?
Occurs when upper vertebrae slides over lower vertebrae
Rotation
What limits ROM?
Shearing forces limit ROM
Rotation
Is direction of rotation named according to upper or lower vertebrae?
Direction of rotation is named according to upper vertebrae moving on lower vertebra
Rotation
Is rotation named according to VB or SP?
Named according to the direction of the body and not the spinous process
Rotation
With what motion is rotation coupled?
Coupled with Side-bending
Rotation
Where is the gap? Compression?
Rotation causes a gap on the ipsilateral facet joint and compression on the contra-lateral facet joint
Right rotation of the superior vertebrae separates_______
Example: right rotation of the superior vertebrae separates its INFERIOR FACET from the SUPERIOR FACET of the inferior vertebrae
If VB turns right, where does SP turn?
Vertebral Body turns right and spinous process turns left
Does the disc move when the vertebrae move?
**disc not necessarily moving around because encapsulated by annulus but pressures are changing.
If there is damage to the annulus then the disc material can start to work its way out to the periphery.**
Combined Movements
normal to see with side bending and rotation.
but we do not expect to see in flexion and extension.
Coupled motion
- where it occurs
- is it the same throughout the lumbar spine?
a) Occurs throughout the entire spine
b) Lumbar spine—coupling varies with the level and position
c) Many opinions about the direction of coupling: ipsilateral or contralateral side (see next slide)
Non-coupled motion:
if person is flexing and also side bending we would need to explore this abnormality
Coupled Movements:
what is it?
one that gives the most ease and most ROM, soft end feel (due to configuration of the facet joints)
- Movement combinations that result in most ease
- Results in greatest ROM and softest end feel
- involve one motion being accompanied by another
- occurs due to configuration of zygopophyseal joint
What causes coupled motion to occur?
occurs due to configuration of zygopophyseal joint
What type of motion results in greatest ROM and softest end feel?
Coupled Movements:
What is neutral in Fryette’s Law?
Neutral refers to any position where facet joints are not engaged (idling) and ligaments and capsules are not under tension
Fryette’s First Law: Neutral Mechanics or Type I Mechanics:
(1) assume normal standing posture with normal A/P curves
(2) When any part of the lumbar or thoracic spine is in NEUTRAL position:
SIDE-BENDING of a vertebra will be OPPOSITE to the side of the ROTATION of that vertebrae
–sidebend to the right with neutral spine lumbar: rotation will occur to the left
Which law: When any part of the lumbar or thoracic spine is in neutral position: sidebending of a vertebra will be opposite to the side of the rotation of that vertebrae
Fryette’s First Law: Neutral Mechanics or Type I Mechanics:
Fryette’s Second Law: Non-Neutral Mechanics or Type II Mechanics:
(1) Facets are ENGAGED (not idle) and ligaments are under tension due to physiological motion that has occurred
(2) SIDE-BENDING and ROTATION occur to the SAME SIDE!
(a) ie if flexed spine, and side bend: the rotation will go to the same side
(3) May be at more risk to injury when non-neutral mechanics are present
Fryette’s First Law: Neutral Mechanics or Type I Mechanics:
Neutral spine
SIDE-BENDING of a vertebra will be OPPOSITE to the side of the ROTATION of that vertebrae
Fryette’s Second Law: Non-Neutral Mechanics or Type II Mechanics:
Engaged facets (ligaments under tension)
SIDE-BENDING and ROTATION occur to the SAME SIDE!
Which mechanics put at most risk of injury?
May be at more risk to injury when non-neutral mechanics are present
Which law
Facets are ENGAGED (not idle) and ligaments are under tension due to physiological motion that has occurred
SIDE-BENDING and ROTATION occur to the SAME SIDE!
Fryette’s Second Law: Non-Neutral Mechanics or Type II Mechanics:
Which law ie if flexed spine, and side bend: the rotation will go to the same side
Fryette’s Second Law: Non-Neutral Mechanics or Type II Mechanics:
Which law -sidebend to the right with neutral spine lumbar: rotation will occur to the left
Fryette’s First Law: Neutral Mechanics or Type I Mechanics:
Fryette’s Third Law: Type III Mechanics
(1) If motion in one plane is introduced to the spine, motion in the other two planes is thereby restricted
—-if i move a segment, any part of the spine, i will be limiting movements at other parts of the spine because it is so interconnected: if head is rotated to the left you can feel it in the lumbar spine
—-segment to segment it is restricted as well, if you take up slack then less slack is available
Which law
If motion in one plane is introduced to the spine, motion in the other two planes is thereby restricted
Fryette’s Third Law: Type III Mechanics
Which law
if i move a segment, any part of the spine, i will be limiting movements at other parts of the spine because it is so interconnected: if head is rotated to the left you can feel it in the lumbar spine
Fryette’s Third Law: Type III Mechanics
What type of motion is fryettes laws related to?
physiological
In flexion and extension: what coupling?
Fryette
Katlenborn
Greenman
Fryette: in flexion and extension: coupling occurs to the same side
Katlenborn:
a) in Flexion: sidebending and rotation to the same side
b) but in extension: sidebending and rotation to the opposite side
Greenman: it depends on what part of the curve you are looking at
a) Coupling varies, dependent upon A/P curves (most relevant in thoracic spine)
b) Follows Fryette’s Law for the Lumbar Spine: flexion and extension: coupling occurs to the same side
Coupling: flexion/extension
Fryette
in flexion and extension: coupling occurs to the same side
Coupling: flexion/extension
Katlenborn
FLEXION: sidebending and rotation to the same side
EXTENSION: sidebending and rotation to the opposite side
Coupling: flexion/extension
Greenman
Greenman: it depends on what part of the curve you are looking at
a) Coupling varies, dependent upon A/P curves (most relevant in thoracic spine)
b) Follows Fryette’s Law for the LUMBAR SPINE: flexion and extension: coupling occurs to the same side
Who agrees with Fryette for Flexion/Extension in the lumbar spine?
Katlenborn only agrees that in FLEXION that sidebending and rotation occur to the same side
Greenman
- Follows Fryette’s Law for the LUMBAR SPINE:
- flexion and extension: coupling occurs to the same side
Who is different in their coupling rule for extension?
Katlenborn
FLEXION: sidebending and rotation to the same side
EXTENSION: sidebending and rotation to the opposite side
Non-Coupled Movements :
[go against normal mechanics—dont go as far, don’t want to stay there-but a patient may have a facet or disc issue and be stuck in that and so have pain]
- Movement combination that result in decreased or absent ease
- For example: stand in neutral alignment by sidebend and rotate to the same side / or flex lumbar spine and sidebend and rotate to opposite sides - Non coupled movements: results in least ROM and hardest end feel
- Patients may be moving in non-coulee way as a result of pathology
Movement combination that result in decreased or absent ease
Non-coupled movements
Which types of movements result in least ROM and hardest end feel?
Non coupled movements: results in least ROM and hardest end feel
Stand in neutral alignment, Sidebend and Rotate to the same side actively:
noncoupled movement
Flex the lumbar spine and try to sidebend and rotate to the opposite side actively
noncoupled movement
Why might a patient be moving in a non-coupled way?
Due to a pathology
Disease States that affect the spine (8)
- Ankylosing Spondylitis
- Osteoarthritis
- Paget’s Disease
- Osteoporosis
- Spondylosis
- Scoliosis
- Laminectomy/ Fusion / Chemonucleolysis
- Degenerative Disc Disease
Structural changes in the spine (3)
- Spinal Stenosis
- Spondylolysis
- Spondylolisthesis
Pathomechanics in spine (3)
- Fracture
- Narrowing of IV Foramen
–multiple causes
(degeneration, bone excursions blocking nerve exits) - Issues with Facet or IV Disc
Causes of fracture in spine (3)
a) Trauma
b) Osteoporosis
c) Fractures secondary to other conditions
- Please review notes about pathologies and fractures of the spine from HSS course
- Review for spine assessment
a) MMT
b) Goniometry
- Please review notes about pathologies and fractures of the spine from HSS course
- Review for spine assessment
a) MMT
b) Goniometry
What does bio-psychosocial analysis of LBP: Waddell address?
- Addresses common, non-specific back pain
[injury causes fear to move leads to cascade: fear avoidance with non-specific back pain: ie had a fall and land on butt and have LBP, initially it will hurt and have muscle spasm and protective of movements and avoidance, get immobilization and disuse, causes muscle weakness joint stiffness and loss of cardiovascular fitness, leads to atrophy loss of coordination and musculoskeletal dysfunction]
Explain the cascade
Pain/Injury causes
fear to move leads to cascade:
fear avoidance with non-specific back pain: ie had a fall and land on butt and have LBP,
initially it will hurt and have muscle spasm and protective of movements and avoidance,
get immobilization and disuse,
causes muscle weakness joint stiffness and loss of cardiovascular fitness,
leads to atrophy loss of coordination and musculoskeletal dysfunction (physiological impairment)
Fear Avoidance Beliefs Questionnaire: FABQ
a) Does patient believe that physical activity and work will affect LBP?
b) Does this fear lead to avoidance of activities?
Waddell: musculoskeletal dysfunction has certain sx, we attend to the sx and label them and are influenced by how we were treated when we were young/how we are being treated to how magnified the pain is
8 Physical Findings Discriminate Patients with LBP from Normal Subjects (8)
Pt with LBP will have limitation in one or more of these clinical tests
Treat the cause: Acute disability proportional to number of objective clinical findings
Treat by disrupting the cycle: with chronic pain, disability is disproportional to the physical findings and it is self-sustaining
- spinal tenderness
- sit up
- Pelvic Flexion
- Total flexion
- Total extension
- Lateral flexion
- SLR
- Bilateral active SLR
Wedell
how to interpret 8 Physical Findings Discriminate Patients with LBP from Normal Subjects
Wedell says that patients with LBP with true organic cause, one or more of these tests will be positive.
If they have a lot of the tests being positive or pain is out of proportion for clinical findings then think about a biopsychosocial aspect to the pain.
- spinal tenderness
- sit up
- Pelvic Flexion
- Total flexion
- Total extension
- Lateral flexion
- SLR
- Bilateral active SLR
Wedell-we think malingerer, what do we do
Do not just say they are a malingerer, think about what the trigger is to get through that barrier (ie social influence at home, anger about accident, loss of work, may need to get a psychologist or social worker on the case) —we identify more than treat a psychological issue
with a malingerer we try to figure it out and get them to a higher level
Wedell: when do we treat cause/when do we disrupt the cycle?
Treat the cause: Acute disability proportional to number of objective clinical findings
Treat by disrupting the cycle: with chronic pain, disability is disproportional to the physical findings and it is self-sustaining
Wedell acute disability
Patients with true LBP will have limitations in one or more of these clinical tests. Acute disability will be proportional to the number of objective clinical findings-treat the cause
Wedell chronic pain
With chronic pain the disability is disproportional to the physical findings and is self-sustaining-treat by disrupting the cycle
Clinical Prediction Rule and Spinal Manipulation
Which variables for spinal manipulation to work?
4/5 variables spinal manipulation likely to work
(1) symtoms DURATION
(2) FEAR AVOIDANCE beliefs
(3) lumbar HYPOMOBILITY
(4) HIP IR ROM
(5) NO SYMPTOMS DISTAL to the knee
Sources of Pain from Facets:
- OVERLOAD of BONY TRABECULAE
(stand in lordosis, support with a lot of extension) - Joint INFLAMMATION and HYPERTROPHY
- MICROFRACTURE
- DYSFUNCTION
- VASCULAR disturbance of bone or soft tissue (nourishments of facets/disc)
- DEGENERATIVE process
- —-Degenerative Joint Disease
- —-Meniscoid synovial folds (get in the way)
- —-Normal adaptation to stress
- —-Subluxation (slipping of one facet on the other, can be accompanied by loss of disc height or loss of the movement get stuck in a particular position)
Pain from Facets
DEGENERATIVE process (4)
1—–Degenerative Joint Disease
2—–Meniscoid synovial folds (get in the way)
3—–Normal adaptation to stress
4—–Subluxation (slipping of one facet on the other, can be accompanied by loss of disc height or loss of the movement get stuck in a particular position)
Why is pain hard to localize when
Innervation to disc, medial aspect of posterior ramus innervations structures as well as the sinovertebral nerve innervating the disc
Innervation to disc, medial aspect of posterior ramus innervations structures as well as the sinovertebral nerve innervating the disc—this pain is diffuse and hard to localize because fibers run up a level or down a level—hard to say pain is in one spot
Facet Joint Dysfunction:
Dysfunctional position of facets
—facets can become maligned and create abnormal stress on tissues (capsule, ligament, disc) and abnormal mechanics of motion
Premise of treatment - re-align facets to restore normal mechanics
How is a facet joint dysfunction named?
Name by the direction they cannot complete or the one which is symptomatic
eg flexion dysfunction: cannot complete flexion without discomfort or abnormal movement pattern
named by the movement the patient cannot do: if pain with extension it is an extension dysfunction
We need to restore L2 on L3 into flexion or into extension for our mobilizations: realign the facets and make it a more stable system to decrease the stress to decrease the sx
Premise of treatment in facet joint dysfunction
re-align facets to restore normal mechanics
Facet Joint Instability:
Instability: hypermobility of motion segment
Premise of treatment: restore balance of the motion segment, teach stabilization techniques
—make sure alignment is proper and then go to stabilization exercises
Premise of treatment for facet joint instability
restore balance of the motion segment, teach stabilization techniques
—make sure alignment is proper and then go to stabilization exercises
What are the three things in Macnabs classification?
- Disc Protrusion
- Disc Herniation or Prolapse
- Intraspongy Nuclear Herniation (nuclear material goes up into the endplate)
Type 1 Disc Protrusion: Peripheral Annular Bulge
annulus fibrosis protrudes CIRCUMFERENTIALLY beyond the peripheral rims of the vertebral bodies but there is no serious nerve root compromise
NO serious NR compromise
Type 2 Disc Protrusion: Localized Annular Bulge
annulus fibrosis bulges and causes clinical signs—–usually UNILATERAL
Touches a nerve or messes up the mechanics enough to cause the patient some PAIN
Type 1: Prolapsed IV Disc:
Displaced material is confined to only a few strands of the annulus fibrosis
Disc is CONTAINED inside ANNULUS
Type 2: Extruded IV Disc
Displaced nucleus goes THROUGH ANNULUS annulus and PUSHES the PLL
comes through annulus and pushes into PLL
Type 3: Sequestered IV Disc
Extruded material LIES FREE IN THE SPINAL CANAL where it can:
(1) Remain trapped between the NR and the disc
(2) Migrates and lie behind the vertebral body in the NR
(3) Migrates to the IV foramen
(4) Migrates to midline, just anterior to the dural sac
Type 1 Disc Protrusion:
Peripheral Annular Bulge
annulus fibrosis protrudes CIRCUMFERENTIALLY beyond the peripheral rims of the vertebral bodies but there is no serious nerve root compromise
NO serious NR compromise
Type 2 Disc Protrusion:
Localized Annular Bulge
annulus fibrosis bulges and causes clinical signs—–usually UNILATERAL
Touches a nerve or messes up the mechanics enough to cause the patient some PAIN
Disc Herniation or Prolapse: Type 1
Type 1: Prolapsed IV Disc:
displaced material is confined to only a few strands of the annulus fibrosis
Disc is contained inside annulus
Disc Herniation or Prolapse: Type 2
Type 2: Extruded IV Disc
Displaced nucleus goes through annulus and pushes the PLL
comes through annulus and pushes into PLL
Disc Herniation or Prolapse: Type 3
Type 3: Sequestered IV Disc
Extruded material lies free in the spinal canal where it can:
(1) Remain trapped between the NR and the disc
(2) Migrates and lie behind the vertebral body in the NR
(3) Migrates to the IV foramen
(4) Migrates to midline, just anterior to the dural sac
What can a sequestered disc material do when it is free in the spinal canal? (4)
(1) Remain TRAPPED between the NR and the DISC
(2) Migrates and lie behind the VERTEBRAL BODY in the NR
(3) Migrates to the IV FORAMEN
(4) Migrates to midline, just ANTERIOR to the DURAL SAC
Intra-Spongy Nuclear Herniation:
Schmorl’s Nodes: herniation of the nucleus pulposus into the vertebral body
Schmorl’s Nodes:
herniation of the nucleus pulposus into the vertebral body
Premise of Treatment:
Protrusion:
manage current symptoms and prevent further degeneration (don’t want to get prolapse)
Premise of Treatment:
Prolapse
centralize the nuclear material: many schools of thought
can do mechanical things to bring nuclear material back to the center location such as extension to fix posterior protrusion
Premise of Treatment:
Sequestration
encourage movements that don’t cause sx, may need surgery based on MRI
General Management for disc herniation/prolapse
what should intervention design be based on
- Design intervention based on signs and symptoms and known precautions
- Manage the pain then the movement problem while respecting the pain and the physiological state of the tissues/person
Disc herniation/protrusion/prolapse: should pain or movement problem be managed first?
Manage the pain then the movement problem while respecting the pain and the physiological state of the tissues/person
Disc issue: Sources of Pain
LOCAL
difficult to localize: pain transmitting nerves innervate multiple levels
a) Disc
b) Facet
c) Ligament
d) Muscle
Disc issue: Sources of Pain
RADICULAR
Radiate from nerve-follow dermatomal pattern
a) Rule out local peripheral nerve involvement
b) Radicular vs Non Radicular Issue
c) Nerve Root vs Peripheral Nerve issues
Disc issue: Sources of Pain
REFERRED
from like-innervated structures
especially thoracic spine and shoulder girdle area, or visceral refer to lumbo-pelvic region
TREATMENT Schools of Thought
- Facet school:
- Cyriax School:
- McKenzie School:
- Osteopathic Approach:
- Facet school: treat the facet
- Cyriax School: treat the disc primarily
- McKenzie School: looks at disc and also movement dysfunction as well as postural syndromes—extension, disc, postural, true dysfunction, disc derangement
- Osteopathic Approach: muscle energy techniques, mobilizations, manipulations to get the patient back into alignment
TREATMENT Schools of Thought
Facet school:
treat the DACET
TREATMENT Schools of Thought
Cyriax School:
treat the DISC primarily
TREATMENT Schools of Thought
McKenzie School:
looks at DISC and also MOVEMENT DYSFUNCTION as well as POSTURAL SYNDROMES—extension, disc, postural, true dysfunction, disc derangement