Principles of HVLA Thrust Technique Flashcards
Define HVLA
osteopathic technique employing a rapid therapeutic force of brief duration that travels a short distance within the anatomic range of motion of a joint; engages restrictive barrier in one or more planes that releases restriction Does not go beyond anatomic barrier
What type of manipulative treatment is HVLA?
direct
What type of motion should be restored to the dysfunctional joint after HVLA?
appropriate physiologic motion
Which barrier is engaged and which barrier is moved through?
restrictive barrier is engaged and dysfunctional barrier is moved through
How many planes are positioned before a final force is delivered?
all three planes
What theories explain the popping noise?
Hutton (bone popping into place); Wharton Hood (snapping of adhesions); Hargrove-Wilson (breaking of joint seal and release of nitrogen bubble); Nicholas-Ehrenfeuchter (thin layer adherence
Process where two congruent surfaces are “glued” together by a typically lubricating substance is thinly spread
This layer adherence theory
Joint surfaces in complete contact with each other in the anatomic position.
Congruent surgaces (ex. spinal facet joints)
List an example of a non congruent surface
Femoral condyles on tibial plateau
Synovial fluid is __X slippier than ice on ice
10X
Synovial fluid possesses (high/low) surface tension.
very high
An articular release must always be audible. (T/F)
False
An articular release can be present in a healthy state. (T/F)
True
How fast is an articular release?
0.04 to 0.06 seconds
What is phonoarthrography?
method for recording release; commonly studied in metacarpal phalangeal and cervical spine facet joints
List the steps of articular release?
Step 1: preliminary tension mobilization
Step 2: articular release
Step 3: overshoot in release
Step 4: Refractory tension; release in tension
What regions make an articular clunk?
sacroiliac joint, hip joint, any osteoarthritic joint
An articular crack sounds like what?
a breaking noise; bimodal or multimodal peak
An articular pop expresses what modality on a sound frequency scale?
single modal curve
When is crepitus most frequently emitted?
wrist in lateral extension
A ligamentous strum is a result of what?
a tense ligament or fascial structure rolling over a bone or solid prominence
A torn adhesion sound is heard during a ?
frozen shoulder; high-pitched non-repreatable tearing
What is the pressure in a facet joint just prior to release?
3.5 atmospheres
In what state must muscles be for producing articular release?
relaxed muscles
Too frequent articular mobilization may lead to what?
hypermobility and ligamentous & capsular hypertrophy
What is the refractory period in the finger? spinal articulations?
finger - 20 minutes
spinal articulations - 1- several hours
When external barometric pressure is lower it makes joints (easier or more difficult) to crack.
easier
What are some contraindications for HVLA?
1 - unstable or hypermobile joints 2 - Rheumatoid arthritis 3 - Down Syndrome 4 - Advanced carotid disease 5 - local metastases 6 - osseous or ligamentous disruption and infection
Do you need to do a physical exam before manipulation?
yes
List 9 screening exams
1 - Spurling's test 2- compression test 3- distraction test 4- vertebral artery test 5 - menigeal irritation tests 6- DTR: UE & LE 7 - Muscle strength 8 - sensation 9 - specific somatic dysfunction
How do you set up the Spurling’s test?
extend neck and rotate & sidebend head toward side of testing. Then add axial force by physician
Why would you use a Spurling test?
evaluate cervical nerve root impingement
What is a positive compression test?
reproduction of radicular symptoms distant from the neck
When would you do a distraction test?
only with a positive compression or spurling’s test
What symptoms would display with C4/C5 disc herniation?
weakness in deltoid muscle; some shoulder pain
What symptoms would display with C5/C6 disc herniation?
weakness in the biceps and wrist extensor muscles; numbness, tingling ** most common level**
What symptoms would display with C6/C7 disc herniation?
weakness in triceps and finger extensor muscles; numbness, tingling also common level
What symptoms would display with C7/T1 disc herniation?
weakness in handgrip, numbness, tingling
How do you place the patient’s head during the vertebral artery test?
passive extension and cervical spine rotation
In the vertebral artery test, which vertebral artery will be tested (ipsilateral/contralateral)
contralateral
What does a positive vertebral artery test result in?
dizziness, nausea, syncope, dysarthria, dysphagia
List 2 meningeal irritation tests
Kernig’s sign; Brudzinski’s sign
What factors can influence deep tendon reflexes?
age, metabolic factors (thyroid dysfunction, electrolyte abnormalities) and anxiety level
Key sensory level C2
occipital protuberance
Key sensory level C3
supraclavicular fossa
Key sensory level C4
superior AC joint
Key sensory level C5
lateral side of antecubital fossa
Key sensory level C6
thumb, dorsal
Key sensory level C7
middle finger, dorsal
Key sensory level C8
little finger, dorsal
Key sensory level T1
medial side of antecubital epicondyle
Key sensory level T2
apex of axilla
Key sensory level T3
3rd intercostal space
Key sensory level T4
nipple line
Key sensory level T5
5th intercostal space
Key sensory level T6
xiphoid process
Key sensory level T7
7th intercostal space
Key sensory level T8
8th intercostal space
Key sensory level T9
9th intercostal space
Key sensory level T10
10 intercostal space
Key sensory level T11
11th intercostal space
Key sensory level T12
inguinal ligament
Key sensory level L1
top of thigh
Key sensory level L2
mid-anterior thigh
Key sensory level L3
medial femoral condyle
Key sensory level L4
medial malleolus
Key sensory level L5
dorsum of foot at 3rd MTP; lateral leg
Key sensory level S1
lateral heel
Key sensory level S2
popliteal fossa
Key sensory level S3
ischial tuberosity; groin
Key sensory level S4-S5
perianal area
Cervical manipulation is much safer than the use of NSAIDs (T/F)?
True
Does the physician emphasize force or localization?
localization
What is the indication for HVLA?
somatic dysfunction with articular restriction