Theory Flashcards

(47 cards)

1
Q

Describe the Gunn Neuropathic Model

A

the role of compression on muscle trigger points and how a sensitization can manifest (dystrophic nerve)

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2
Q

What is the cycle of dysfunction proposed by Gunn

A

spondylosis, compression of peripheral nerves, denervation supersensitivity, muscle banding / trigger points, increased nerve irritation, continued denervation supersensitivity

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3
Q

Describe energy crisis theory and motor end plate hypothesis as it pertains to trigger points

A

consider the chemical causes of prolonged contraction. The energy crisis theory considers the role of calcium, and the motor end plate hypothesis considers the role of acetyolcholine

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4
Q

2 general recepotros in the body

A

Exteroreceptors collect information from outside the body, and enteroreceptors collect information from within our body.

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5
Q

factors influencing nervous system

A

pain, injury, stress, sleep, nutrition, emotion, exercise load, enviormental stressors

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6
Q

Are there reflex loops in periphealr and visceral nervouse systems

A

Yes the peripheral nervous symptoms involve muscles for reflex loops, and visceral internal organs.

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7
Q

Differentiate between thes omatic afferen tinformation and visceral afferent information

A

The somatic nervous systems carries afferent sensory information from skin, muscles and joints. The Visceral nervous system includes afferent information from organ and blood vessels.

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8
Q

Describe the modulation of pain an on/off mechanism?Explain

A

The body can inhibit and facilitate pain. The modulation system is not an on and off system because it considers the input. It may prioritize and evaluate information - it may consider danger, and receive input from other systems of the body (i.e limbic) to modulate pain.

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9
Q

Nerve layers deepest to superficial

A

Epineurium, perinuerium, endoneurium

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10
Q

What are some distinguishing characteristics of each layer

A

Endo - more susceptible to pressure. Peri - risk of punctures. Epi - dense connective tissue

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11
Q

What determines if a nerve fires or transmits an impulse?

A

If excitatory potential exceed inhibitory potential

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12
Q

List the nerves in order of fasted to slowest speed of impulse conduction

A

Mylenated (A Alpha, B Beta, A Delta ) Unmyelinated (C fibers)

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13
Q

What is the difference in type of pain and modality sensed between A delta and C- Fibers?

A

A delta are intense signal conducting for fast nociceptive pain, damaging temperature and light mechanical deformation.

C fibers are slower adaptive receptors, sensations include warm, secondary burning to pain and muscle burn.

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14
Q

What are the three types of pain and their broad descriptions according to Wall?

A

Type 1 (Nociceptive, immediate acute pain), Type II (Inflammatory, biochemical pain), Type III (Chronic, neuropathic)

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15
Q

What are the time responses for the different types of pain?

A

Type 1 - immediate. Type II within 48 hours, Type III > 3 months persists.

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16
Q

What is the description of the quality of pain for each type?

A

Type I (sharp, stabbing, throbbing), Type II (Acute, throb), Type III (Variable)

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17
Q

What behaviours are associated with each type of pain?

A

Type I (fight or flight), Type II (concern, anxiety, care seeking), Type III (depression, introversion, resistant to treatment)

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18
Q

How long does the maturation phase of wound healing take?

A

21 days to 3+ years

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19
Q

After the maturation phase of wound healing is the tissue as strong as it was before?

A

No, it can be 20% weaker than original tissue

20
Q

Describe the gate control theory of pain

A

The gate control theory describes how different types signals can interfere with others. For example, a A beta fibers can inbibit the effects of fast pain and slow pain.

21
Q

What tissues in the body can develop denervation supersensitivity ?

A

Muscles, glands, vessels, organs, CNS

22
Q

According to Cannon and Rosenbluth, what occurs when a nerve is injured?

A

It can result in super sensitivity

23
Q

Describe the types of supersensitivity that can develop

A

Normal (normal response),
super duration (time course increases),
hyper-excitability (threshold of stimulating is lower),
increased susceptibility (threshold of stimulus is lower than previous, non-noxious or noxious),
super reactivity (capacity of tissue to respond is augmented)

24
Q

What are the four main causes of neuropathy?

A

Mechanical, chemical, chemical (exogenous source), disease process

25
Which nerve fibers are the most susceptible to compression?
Large diameter nerves
26
What are the three major categories of compression to motor neurons according to Seddan?
Neuropraxia, axontmesis, neurotmesis
27
Which of the three has signs and symptoms that are similar to neuropathic signs and symptoms?
Neuropraxia
28
For each of the following, list one specific change that occurs in a neuropathic state: * Histopathology - * Vascular - * Neural Tissue * Muscular - * Biochemical * Connective Tissue Changes - * Autonomic Nervous system - * Movement/Postural Dysfunction
* Histopathology - collagen changes from Type I = Type III (not as strong of connective tissue) * Vascular - lipid deposits and thrombi are observed * Neural Tissue - decreased threshold to nerve firing * Muscular - not providing appropriate information to muscle for firing (shortened muscle syndrome, trigger points) * Biochemical - elevated hydrogen (trigger points) * Connective Tissue Changes - dystrophic changes at bone, tendon ligament leading to tendinitis, bone spurs, arthritis etc. * Autonomic Nervous system - super sensitized nerves, peau d’orange. Hair loss. * Movement/Postural Dysfunction- wake and shortened muscles lead to alterations in biomechanics
29
Define neuropathy:
Disease or injury to one or more nerves leading to nerve function impairement
30
Define traditional radiculopathy -
Often at spinal nerve root with radicular pain - weak, numb. lack of ongoing nociceptive input that are persistent at 12 weeks post injury
31
What are the signs and symptoms of neuropathy?
Postural imbalance, movement dysfunction, decreased ROM, neural changes, autonomic changes, muscles with trigger points ,tenonitis, osteoarthritis or bony changes
32
List 3 potential peripheral and 2 central mechanisms for the development of neuropathic dysfunction
Peripheral - ectopic conduction, ephatic conduction, alteration in ion channel Central - spinal cord reorganization, central sensitization
33
What are to potential mechanisms that would describe the effect of needling immediately and over a longer period?
Direct and reflex stimulation to the trigger point causing an immediate contract relax reflex via spinal reflex pathway, Micro trauma from the needle causing inflammatory process of injury. Over longer period of time this allows increased ROM.
34
List the absolute contraindications to needling
Patient factors (needle junkie, phobia), Therapist factors (confidence, knowledge), infection, active tumour, compromised immune symptom, near surgical insite or on side of lymph node removal, inappropriate equipment
35
What are the relative contraindications to needling?
Acute trauma, active autoimmune disease, over impacts, blood thinners, children, allergies to medal, heart valve replacement
36
What are precautions with needling?
severe allodynia anxiety language barriers, cognitive impairement, Vascular disease, diabetes,
37
What is the minimum amount of time you should wait before needling in any area that communicates with a surgical site? What about the local area of surgery?
Needling near surgical site within 3 months is contraindicated. Post surgical in any tissue for 6 weeks is a relative contraindication. Post surgical in local area for 3 months is a relative contraindication.
38
Describe sterile technique for needle application
Wash hands with soap, use latex gloves, wash the area, sterolize gloves after palpating area to needle, if needle touches skin throw it out, place needle and cotton swab after you have pressed it on wound in sharps / biohazard container
39
What should you do if you receive a needle stick injury?
Dispose of needle, remove gloves and contaminated clothes, wash wound with soap and water, go to emergency for testing and treatment protocol
40
. List 10 different potential side effects of needling
Bruising Bleeding Pain Soreness Dizzy Nausea Sweating Feeling faint Fatigue Broken needle Pnueomthoax Infection
41
Which post needle complications require hospital admission?
Pnuemothorax
42
List the clinical signs and symptoms of pneumothorax
Shortness of breath, sudden sharp chest pain, weak rapid pulse, dry hacking cough, shoulder pain, patient finds sitting up right most comfortable position
43
46. What are the signs and symptoms of a vasovagal reaction?
Pale skin, feeling swarm or cold and clammy, yawning, blurred vision
44
List the requirements to use a needle as a treatment modality
No contraindications, appropriate patient, you have time and equipment, you can test - retest for impact, you have screened sensitivity or nervous system dysfunction, you have completed neuropathic scan, signs of nerve root involvement that innervate tight bands, anatomically and movement wise it makes sense, you have considered less invasive techniques.
45
What must you consider when selecting your patient for potential needling?
The diagnosis, medical condition, if the patient understands, communicates, has capacity to lay still, and give informed consent. If you are in a safe application area.
46
CLEAN NEEDLING GUIDELINES
wash hands before and after each patient environment prepared prior - should include all required equipment, appropriate lighting, appropriate space sharps container that is open for needs disposal, pliers 3. Adequately expose the area 4. Pgloves and sterilize with isopropyl alcohol > 70 Sterilize area allow to dry 6. Open sterile needle packet to expose the needle and remove the tab 7. With non needle hand landmark appropriately and palpate the muscle to be needled; then bracket this muscle Tap in needle firmly with index finger 2. Remove guide tube slowly and hold only the needles handle. If the shaft touches you or the skin as it bends remove and dispose of the needle in the sharps container 3. Re sheath needle if required by inserting handle first into the guide tube 4. Place the needle in the sharps container once completed 5. Apply direct pressure with cotton swab, 6. Dispose of tissue/swab into sharps container 8. Remove gloves enclosing any blood borne tissues and guide tubes and place in disposal bin
47
Define radiculopathy/radiculoneuropathy according to the FHE definition
Compression, pressure and/or any combination of tri-planar load to a nerve can alter its function. If left unaddressed, mechanical insult can create a dystrophic state within the nerve, those nerves that communicate with it and its target tissues.