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277 Cards in this Set
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Cryotherapy |
use surface of cryoagents to lower soft tissue temp |
|
Cryotherapy rationale |
treatment of acute/subacute soft tissue Hemostatic and inflammatory phases of tissue repair manage pain/spasticity due to effects on peripheral nerves |
|
Cryotherapy based on what? |
heat absorption heat transfer: heat withdrawn from soft tissue |
|
subcutaneous fat effect on cryotherapy
|
acts as barrier for heat transfer due to thermal conductivity modify parameters for pt based on subcutaneous fat layer |
|
Therapeutic effects/indications of cryotherapy |
vasocontriction decreased blood flow decreased cell metabolism decreased edema decreased pain decreased muscle spasticity |
|
Optimal therapeutic temp window for cryotherapy |
50-60 degrees |
|
Cryotherapy overall indications |
moderate - substantiated |
|
Cryotherapy TKA indications |
strong, conflicting |
|
Cryotherapy post op musculoskeletal conditions indications |
strong, substantiated |
|
cryotherapy ankle sprain indcations |
moderate, substantiated |
|
cryotherapy spasticity indications |
moderate, substantiated |
|
cryotherapy joint/tendon/muscle condition indications |
moderate, substantiated |
|
cryotherapy arthritic/rheumatoid condition indications |
moderate, substantiated |
|
Qualitative dosimetry for cryotherapy |
CBAN - cold, burning, achey, numbness |
|
quantitative dosimetry for cryotherapy |
Dose = Tag-Ts (45 F) |
|
what should be coupled with cryotherapy |
wet towels - protects from germs - but does not absorb cold |
|
screening tests to do before cryotherapy |
skin thermal discrimination test cold urticaria nail bed test blood pressure - before and after skin fold test |
|
contraindications for cryotherapy |
Big 5 cold induced urticaria raynaud's disease cryoglobulinemia paroxysmal cold hemoglobinuria wounds PVD |
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Thermotherapy |
application of heat over skin for heating soft tissues |
|
types of thermotherapy |
most heat packs paraffin bath fluidotherapy |
|
Thermotherapy rationale |
increase temp over large areas (MHP) increase tissue temp over difficult to reach areas (paraffin) |
|
4 modes of heat transfer |
conduction convection conversion radiation |
|
specific heat |
capacity of a substance to store heat |
|
thermal conductivity |
capacity of substance to conduct heat |
|
Optimal thermal window |
104-113 F |
|
Why is the optimal thermal window where it is |
below 104 - desired results not acheived above 113 - too hot and cell death occurs |
|
Indications for thermotherapy |
RA/OA Neck/back/shoulder pain |
|
overall evidence for thermotherapy indications |
moderate, substantiated |
|
Quantitative Dosimetry for thermotherapy |
Dose = Tag - Ts (44 F warmer than skin temp) |
|
Moist heat pack dosimetric factors |
- size of pack - temp difference btwn agent/skin - application duration - coupling thickness |
|
skin sensory discrimination testing |
give to assess pt. ability to perceive thermal stimuli warm and hot test tubes |
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Contraindications for all physical agents |
Big 5 pregnancy malignancy impaired mentation impaired sensation electronic implants |
|
contraindications for thermotherapy |
Big 5 thrombophlebitic areas hemorrhagic areas acute/severly inflammed areas |
|
risks for thermotherapy |
over area of impaired circulation cardiac insufficiency wounds superficial metal systemic infectious disease hand fine motor |
|
dosimetry for paraffin bath |
temp 113-122 F - because it has lower specific heat and lower conductivity |
|
Ultrasound foudation |
use of mechanical acoustic/sound energy to treat pathological soft tissues, dermal wounds, bones, or transfer of ion into tissues |
|
Ultrasound rationale |
mechanical energy transmitted to induce deep/localized thermal and mechanical effects in pathological soft tissues |
|
where is ultrasound most effective |
tissues rich in protein - tendons/ligaments minimal effect on overlying skin |
|
Biophysical characteristics of ultrasound |
- electric current passes over crystal - crystal expands and compresses - produces mechanical pressure waves - waves travel through medium (gel) to biological tissues |
|
effective radiating area of ultrasound |
area of transducer where US energy radiates because crystal does not vibrate uniformly, ERA smaller than area of treatment head |
|
spatial peak intensity |
peak intensity of US output over area of transducer. usually greatest in the center of beam, lowest at edge |
|
spatial average intensity |
average intensity of US output over area of transducer |
|
beam nonuniformity ration - BNR |
ratio of spatial peak intensity to spatial avg intensity - usually between 5:1 and 6:1 |
|
Thermal effects/indications of ultrasound |
acoustic energy absorbed microvibration at high frequency microfriction increase kinetic energy heat |
|
mechanical effects/indications of ultrasound |
stable cavitation microstraming |
|
Attenuation coefficient |
ability of tissue to absorb US energy |
|
order of tissue absorption of US energy |
Bone > cartilage > tendon > skin > muscle |
|
indications of ultrasound |
Moderate, conflicting |
|
what is US used on? |
myofascial pain heating of tendon pathologies adhesive capsulitis |
|
Dosimetry of US |
frequency - based on depth of tissue 1-3.3 MHz 1 MHz deeper penetration - due to longer wavelength |
|
What is delivery mode of US based on? |
amount of thermal effect you are trying to achieve - continuous - pulsed |
|
Coupling mediums of US |
Gel Water Medium pressure |
|
Application techniques of US |
Dynamic Hot spots |
|
Heating speed of tissues w/ US |
Superficial tissue heat quick than deep tissue |
|
How long do deep tissues require to heat? |
10 minutes |
|
Intensities for heating deep tissue, US |
>1.0 |
|
Intensities for heating superficial tissue, US |
<1.0 |
|
Indication for Non-thermal dose of US |
Acute injury- don't want to heat swelling |
|
Indication for mild thermal (1 C increase) dose of US |
Subacute injury |
|
Indication for moderate thermal (2-3 C increase) dose of US |
chronic inflammation, pain, trigger points |
|
Indication for vigorous thermal (4 C increase) does of US |
Stretch Collagen |
|
Frequency for .5 intensity |
1MHz - .04 C/ min 3 MHz - .3 C/min |
|
frequency for 1.0 intensity |
1 MHz - .2C 3 MHz - .6 C |
|
frequency for 1.5 intensity |
1 MHz - .3 C/min 3 MHz - .9 C/ming |
|
frequency for 2.0 intensity |
1 MHz - .4 C/min 3 MHz - .1.4 C/min |
|
application intensity to heat deep muscle using US |
freq - 1 MHz 100% duty cycle 1.5 W/Cm2 13 minutes for vigorous heating |
|
heating a tendon with US |
can heat less due to higher protein levels/vascularity |
|
Application intensity to heat superficial muscle with US |
freq - 3 MHz 100% duty cycle .5-1.0 W/cm2 7-13 minutes |
|
Clinical window for muscle after US heating |
3.3 minute window |
|
Clinical window for tendon/ligament after US heating |
5 minute window |
|
Contraindications for US |
Hemorrhagic area ischemic area thrombosis infected lesion GONADS EYES PELVIS OF MENSTRUATING WOMEN SPINAL CORD AFTER LAMINECTOMY PLASTIC/CEMENT IMPLANTS |
|
US risks |
Epiphyseal growth plates <6 months post radiotherapy |
|
HVPC foundation |
Use electrical current to aid in soft tissue repair/healing |
|
HVPC Rationale |
treatment of slow to heal chronic wounds in aging population. HVPC can mimic body's bioelectric system and accelerate wound healing process |
|
HVPC Waveform |
twin peak monophasic pulse
|
|
HVPC voltage |
150-500 V |
|
HVPC pulse duration |
short 100-200 microseconds, fixed by manufacturer |
|
HVPC pulse frequency |
1-200 pps |
|
Why does HVPC have an effect on wounds? |
injured tissues leak ions out of their cells, causing wound area to be positively charged relatively |
|
Galvanotaxis |
process of specific cells (neutrophils, macrophages, lymphocytes, and fibroblasts) being attracted to injured healing area by electrical charge |
|
Cells attracted to wound in inflammatory phase and charge |
macrophages neutrophils (negative charge) |
|
HVPC which electrode would be placed near wound in inflammatory phase? |
anode (+) |
|
cells attracted to wound in proliferative phase and charge? |
fibroblasts (positive charge) |
|
which electrode should be placed near wound in proliferative phase? |
cathode (-) |
|
types of cell attracted to wound in remodeling/maturation phase and charge? |
keratinocytes epidermal (positive charge) |
|
which electrode should be placed near wound in remodeling/maturation phase? |
Cathode (-) |
|
Germicidal evidence of HVPC |
- limited, but stated that passing electric current will induce germicidal effect - inhibits growth of microorganisms |
|
length of HVPC stimulation |
30 minutes to 2 hours |
|
Therapeutic effects of HVPC on edema |
conflicting |
|
therapeutic effects of HVPC on decreasing Pelvic Floor Muscle spasm |
supported - not specific to HVPC |
|
Therapeutic effects not supported for HVPC |
DOMS Increased muscle strength/blood flow |
|
Evidence for HVPC in decrease pain |
supported due to gate theory NOT RECOMMENDED DUE TO CHARGE BUILDUP |
|
Indications of HVPC on dermal wounds |
moderate, substantiate |
|
HVPC frequency |
1-200 Hz |
|
HVPC amplitude |
150-500 V (Comfortable level) |
|
HVPC polarity |
anodal for inflammatory cathodal for everything else |
|
HVPC treatment duration |
30-90 mins. 1-3x per day |
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HVPC contraindications |
Osteomyelitis CA electronic/metallic implants anterior cervical thoracic area cranial area ab/pelvis/lumbar of pregnant pt. Hemorrhages |
|
HVPC risks |
Cross contamination Universal precautions |
|
HVPC application of electrode in or around wound |
treatment electrode, saline soaked gauze directly in wound covered with foil or single pt. use attached to wire with clip |
|
HVPC application of electrode away from wound |
dispersive electrode placed close to wound site to ensure current delivery through wound |
|
interferential foundation |
low-frequency, amplitude modulated ES current from interference caused by crossing 2 or more medium frequency AC w/ different freq. PRODUCES BEAT EFFECT |
|
interferential used as whaT? |
electroanalgesic (gate theory) |
|
interferential goal |
deeper penetration - more comfortable |
|
interferential used for whaT? |
pain control primarily muscle re-education of pelvic floor |
|
interferential waveform |
superimposition of 2 sinusoidal AC of med. freq. |
|
how is beat created in interferential? |
medium frequencies cross and created low-frequency current - waves negate each other as they cross beat frequency is the difference between the 2 carrier frequencies |
|
Quadrapolar technique interferential? |
4 electrodes - 2 crossing currents creates 4 leaf clover shaped field |
|
Quadrapolar technique Vector scan in interferential ? |
more dynamic effect
creates more of a circular shaped field to enlarge treatment area |
|
interferential stereodynamic technique? |
6 electrodes make 3 crossing currents 3D field Not commonly seen clinically |
|
interferential bipolar technique (Premodulated)? |
2 electrodes - 2 crossing currents currents cross inside device - not tissues modulated current delivered through one channel |
|
what is interferential bipolar technique used to treat? |
smaller areas |
|
Indications for inferential therapy |
Moderate, substantiated Pain - Gate theory Pelvic floor strengthening bowel dysfunction |
|
Inferential pain frequency |
frequency in BPS pre-set for 80-150 bps similar to tens |
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inferential frequency rationale |
High rate/frequency Preferentially stim sensory fibers (large A-beta) Close dorsal horn gate |
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Inferential pain duration |
15-30 minutes |
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Inferential dosimetry for muscle strengthening and spasm reduction |
1-10 bps for edema management 10-100 bps for muscle rehabilitation |
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Contraindications of Inferential |
Big 5 transcervical/thoracic hemorrhagic area ARTERIAL/VENOUS THROMBUS CONTRAINDICATED ACTIVE MOTION - MOTOR same as TENS |
|
Iontophoresis foundation |
use of electrical current to transfer ionized medication/substances through skin to target tissue |
|
Iontophoresis Rationale |
use DC to deliver ionized substances to skin |
|
Why would Iontophoresis be used? |
pt unable to tolerate oral medications pt do not want needle injection |
|
Electromigration |
movement of ions across the skin |
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Polarity of electrode for iontophoresis |
same charge as the druge in its ionic form - like charges repel |
|
Electrode labeling of iontophoresis |
Active, treatment - therapeutic ions are placed Dispersive, Non-treatment - return electrode, mandatory, closes electrical circuit |
|
Drug substance penetration depth iontophoresis |
Reservoir of medication of epidermis Passive diffusion to dermis Localized blood flow |
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Phoretic effects of ionto |
transfer of ions through stratum corneum |
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electrolytic effects of ionto |
electrolysis at electrode sites |
|
pharmocologic effects of ionto |
relates directly to the specific pharmaceutical content of ionic drug used |
|
what are physiological events under anode in ionto |
Cl- ions attracted to positive anode reaction of Cl- ions w/ water leads to weak hydrochloric acid reaction is sclerotic, can harden skin |
|
what are physiological event under cathode in ionto |
Na+ attracted to negative cathode reaction of sodium w/ water leads to stronger sodium hydroxide base stronger alkaline reaction is scleryotic, softens skin, which can raise burn potential |
|
Traditional delivery of ionto |
constant current type electrical device creating continuous monophasic current waveform (DC) w/ peak amp. of 5 mA |
|
Monophasic waveform negative reactions |
unwanted electochemical reaction pH instability |
|
Buffering caused by ionto |
electrolysis-induced pH changes at skin/electrode interface: impregnation of buffering agent into pad covering drug resevoir Control current density |
|
Indications for ionto |
Moderate and substantiated Hyperhidrosis Rheumatoid d/o Epicondylitis Peyronie's disease TMJ Calcifying tendinitis |
|
4 factors for ionto dosimetry |
drug ions polarity concentration/volume of ionic solution dose used |
|
Dose equation for ionto |
dose = mA x min |
|
current density |
amount of current amplitude applied against the electrode conductive surface area |
|
current density equation |
CD = A (mA) / S (cm2) |
|
max current density under cathode (ionto) |
.5 mA/cm2 |
|
max current density under anode (ionto) |
1.0 mA/cm2 |
|
ionto contraindications |
open skin
temporal/orbicular areas sensitivity/allergy to drug ions electronic implants |
|
ionto risks |
skin irritation/burns presence of flammable sprays/solution over skin w/ impaired sensation recently shaved skin |
|
ionto steps of application |
ID target tissue ID active electrode saturate active electrode with medication place on target tissue select appropriate CD slowly increase amplitude |
|
Neuromuscular electrical stimulation (NMES) foundation |
use pulsed electrical currents applied to skeletal muscle to elecit a motor response to preserve/restore muscle function |
|
Types of currents used in NMES |
Biphasic, pulsed Russian Interferential |
|
NMES rationale |
provide practitioners alternate muscle strengthening method that mimics voluntary training methods for those unable to perform contraction |
|
effects of NMES |
improve motor unit recruitment induce muscle hypertrophy |
|
how does NMES strengthen muscles |
depolarizes motor nerve rapid repolarization refractory period |
|
difference between motor recruitment in NMES and physiologic |
NMES recruits largest fibers that innervate larger, fast twitch muscle fibers and recruit small, slow twitch fibers nest Physiological contractions recruit slow twitch fibers first |
|
what is caused by the difference in motor recruitment btwn NMES and physiologic contraction |
quicker fatigue, more recovery time btwn contractions NMES contractions rapid and jerky, while physiologic contractions are smooth |
|
NMES indications |
Moderate, substantiated for quad weakness IFC pelvic floor weakness, bowel dysfunction, pain |
|
NMES dosimetry pulse frequency |
30-60 pps (mean of 50) |
|
NMES dosimetry for pulse duration |
150-350 microseconds |
|
NMES dosimetry for amplitude |
strong, but tolerable - higher amplitude means more motor units contracted |
|
On:off ratio for NMES |
1:5 to 1:3, 1:1 |
|
Ramp up for NMES pulse |
.5-2 seconds |
|
NMES duty cycle |
10 secs on, 50 secs off |
|
Electrode placement in NMES |
over motor point and peripheral nerve |
|
Overload principle of NMES |
muscle must be overloaded to hypertrophy. strength only improves with overloading. |
|
Specificity theory of NMES |
E-stim causes larger, fast twitch muscles to contract before smaller fibers, which produces more force. Therefore, e-stim should be able to produce greater strength gains than exercise alone with same force contractions (Russian protocol) |
|
contraindications of NMES |
ant cervical thoracic/cranial area rate resp. pacemakers 1st trimester preg woman (ab, pelvis, lumbar) over metal implants epilepsy hemorrhagic areas CA damaged skin |
|
NMES risks |
contact dermatitis SWD fainting, nausea, skin rashes, swelling, pain muscle damage |
|
recommended pulse freq. for NMES Russian |
2500 Hz continuous sine wave, burst modulated for 10 ms w/ 50 pulses per second |
|
recommended pulse duration for NMES Russian |
400 microsecs - each sine wave cycle equaling 200 microsecs per phase |
|
Recommended amplitude and on/off time for NMES Russian |
Amplitude: to tolerance On/off: 10:50 |
|
Recommended Ramp/treatment time and times/day to do NMES Russian |
Ramp: not disclosed Treatment time: 10-20 mins to produce 10-20 contractions times/day: once |
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Recommended parameter settings for NMES muscle strengthening -Pulse freq/duration -amp -on/off time -ratio - ramp/treatment time - times/day |
frequency - 35-80pps duration - 150-200 microsecs (small m) 200-350 microsecs (large m) Amp - >10% of MVIC injured, >50% in uninjured On/Off - 6-10 secs : 50-120 secs Ratio - 1:5 initially, may reduce over time Ramp time: 2 secs treatment time: 10-20 mins for 10-20 reps Times/day: every 2-3 hours |
|
NMES Muscle re-ed. (FES) pulse freq/duration, amplitude |
freq: 35-50 pps duration: 150-200 small muscles, 200-350 large muscles amplitude: sufficient for functional activity |
|
NMES muscle re-ed on/off times, ration, ramp time |
on/off - depends on functional activity ratio - depends on functional activity ramp time - at least 2 secs |
|
NMES muscle re-ed treatment time, times/day |
treatment time - depends on functional activity times/day - N/A |
|
NMES Muscle spasm redux pulse freq/duration, amplitude |
freq - 35-50 pps duration - 150-200 microsecs (small muscles), 200-350 (large muscles) amplitude - to visible contraction |
|
NMES muscle spasm redux on/off times, ratio, ramp time |
on/off times - 2-5 sec off ratio - equal on/off times ramp time - at least 1 sec |
|
NMES muscle spasm treatment time, times/day |
treatment time - 10-30 min times/day - every 2-3 hours until spasm relieved |
|
NMES edema redux pulse freq/duration, amplitude |
freq - 30-60 pps duration - 100-200 microsecs (small m), 200-600 microsecs (large m) amplitude - to visible contraction |
|
NMES edema redux on/off times, ratio, ramp time |
on/off time - 2-5 sec off ratio - equal on/off time ramp time - at least 1 sec |
|
NMES edema redux treatment time, times/day |
treatment time - 30 mins times/day - twice per day |
|
Foundation of TENS therapy |
use of electrical current (pulsed, biphasic) to stim peripheral nerves to produce ELECTROANALGESIA |
|
Purpose of TENS therapy |
pain management |
|
TENS Rationale |
option for management of pain other than med or surgery Non-invasive, no side effects, less expensive |
|
TENS Waveform |
biphasic, pulsed current Modulated, pulse/burst |
|
A-beta fibers |
mechanosensistive
|
|
A-delta fibers |
nociceptive |
|
C-fibers |
Nociceptive |
|
Gate system |
Gate to brain may be open or closed in spinal cord, one sensory impulse at a time |
|
Opiate system |
human body pain modulation system |
|
level which opiate system operates |
supraspinal |
|
what is involved in opiate system |
neuroendocrine activity from subcortical areas (periaqueductal gray matter/nucleus raphe magnus) |
|
How do we open gate in TENS? |
preferential depolarization of A-delta & C-fibers negative fdbk loop, T-cell inhibition |
|
TENS strong, substantiated indications |
Postop ab pain Labor/post labor pain postop thoracic pain OA pain Dysmennorrheal pain post op ortho pain |
|
TENS moderate, substantiated indications |
LBP neurogenic pain chronic pain syndroms stump/phantom pain RA pain orofascial pain |
|
Types of TENS dosimetry |
convential (high rate) acupuncture (low rate) brief intense burst modulation |
|
Convential TENS dosimetry |
sensory level - short duration, high freq - comfortable pins and needles preferential depolarization of large diameter A-beta fibers Close gate Rapid Analgesi |
|
Acupuncture like TENS therapy dosimetry |
Motor stim - preferential depol of A-beta fibers AND motor fibers - tingling and motor contraction to stim DEOS - Onset of analgesia is slow, but sustained for long period |
|
Brief Intense TENS therapy dosimetry |
High amp capable of noxious stim - brief due to duration of application being brief - somewhat painful - tingling, motor contraction, strong motor contraction, max tolerable pain - onset of analgesia rapid, sustained for long period |
|
what is brief intense TENS dosimetry painful |
preferential depolarization of A-beta, motor fibers A-delta AND c-delta |
|
TENS burst mode dosimetry |
delivery of bursts of pulses instead of single pulse (otherwise same as acupuncture- like) |
|
Modulation mode TENS dosimety |
Random modulation of pulse duration, freq, and amp difficult to state exact mechanism for pain modulation |
|
TENS Duration of application |
30 mins - 3 hours |
|
How do you choose mode for TENS therapy? |
change based on effectiveness on analgesia |
|
Contraindications for TENS Therapy |
pacemaker (especially new ones) defibrillators contact dermatitis ant. cervical thoracic/cranial ab/lumbar/pelvic area of pregnant woman epilepsy hemorrhagic area CA damaged skin impaired mentation |
|
where are electrodes placed in TENS therapy |
Over pain surround pain over trigger point over acupuncture point 2 or 4 electrodes |
|
Conventional TENS Pulse freq/duration/amplitude |
Freq - 100-150 pps Duration - 50-100 microsecs Amp - to produce tingling |
|
Conventional TENS modulation, treatment time |
Modulation - use if possible Treatment time - 3 hours, multiple time over day, remove unit for skin checks once every 8 hrs. |
|
When does conventional TENS control pain? |
only during stimulation |
|
What is likely the mechanism of action of Conventional tens? |
closes gate at spinal cord level |
|
TENS acupuncture like Pulse freq, duration, amp |
Freq - 2-10 pps duration - 100-300 micros amp - to visible contraction |
|
TENS acupuncture like modulation, treatment time |
modulation - none treatment time - 30 minutes |
|
Likely mechanism of action in TENS acupuncture like therapy |
opening gate, DEOS system, endorphins |
|
traction foundation |
to provide mechanical distraction to spinal structures, including joint surfaces |
|
traction rationale |
provide passive spinal elongation and increase intervertebral space |
|
what is traction used for |
decrease compression forces on disc/peripheral nerve tissues |
|
what is mechanical energy for in traction |
intension is separation of vertebrae |
|
what is the steps of tensile forces in traction |
take up slack elongate soft tissues cause joint separation |
|
how must tensile forces be applied in traction, why? |
slow, low level force, consistent. reflexic muscular contraction may happen if too sudden |
|
where is forces placed? |
first muscles, then ligaments, then capsule, then IV disc |
|
What is purpose of removing force from IV disc? |
if outer layer of disc is ruptured and nucleus pulposus is bulging, removing force will draw pulposus back in |
|
modes of traction |
static intermittent |
|
Therapeutic effects/indications of traction |
reduce disc protrusion stretch soft tissue structures relax muscles mobilize joints relieve pain centralize symptoms prepare pt. for active therapy |
|
Moderate, substantiated indications for traction |
disc bulge nerve root impingment joint hypermobility subacute joint inflammation paraspinal muscle spasm central/lateral stenosis DJD |
|
Force dosimetry for traction |
large enough to overcome weight, friction, gravity acting on spinal segments |
|
Force needed for cervical traction |
10-30% body wt |
|
force needed for lumbar traction |
30-60% body weight |
|
traction angle dosimetry
|
0-30 angle of pull more facet joint separation in 0 degree pull |
|
traction duration dosimetry |
10-30 minutes |
|
contraindications of traction |
Big 5 CONTRAINDICATED MOTION acute injury/inflammation spinal cord compression vertebral artery occlusion peripheralization of symptoms with traction uncontrolled hypertension pregnancy/breastfeeding |
|
structural diseases affecting spine to contraindicate traction |
tumor infection RA osteoporosis prolonged steroid use spinal cord stenosis spondylo |
|
When is pressure of traction belt hazardous |
pregnancy hiatal hernia vascular compromise osteoporosis TMJ |
|
Yellow flags of traction |
Displacement of annular fragment medial disc protrusion severe pain fully relieved by traction claustrophobia pt who can tolerate prone/supine disorientation dentures |
|
what is Diathermy (SWD) |
electromagnetic agent carrying nrg to soft tissues - absorbed as heat |
|
SWD theoretical rationale |
use of electrotherapeutic agent capable of DEEP HEAT over LARGE SURFACE AREA of soft tissues, minimally heats superficial tissues |
|
what is required for movement of waves |
no medium - travel through vacuum of space @ speed of light |
|
how is SWD described |
wavelength (Peak to peak distance)
Frequency (cycles per sec) |
|
frequency characteristics of SWD |
radio frequency
non-ionizing radiant energy MOST common (27.12 MHz) |
|
SWDD tuning |
happens when biological tissues oscilllate at same freq as device circuit |
|
Type of waves for SWD |
alternate from + to - |
|
Thermal effects of SWD |
heat increases kinetic NRG of tissues |
|
Athermal effects of SWD |
hypothetical - improves ATP production and growth factor |
|
Two modes of application for SWD |
pulsed continuous |
|
Pulsed SWD |
on/off time use when athermal effects desired |
|
continuous SWD |
use when thermal effects desired |
|
two methods of SWD |
capacitive inductive |
|
capacitive SWD |
use of 2 capacitive metal electrode producing electrical field in patient |
|
when is capacitive SWD recommended |
treatment of superficial soft tissues mostly absorbed by tissues with high electrical impedence (fat) |
|
Inductive SWD |
use of single inductive coil type electrode wrapped around a treated body segment produces magnetic field in pt. perpendicular to coil |
|
when is inductive SWD used |
for treatment of deeper tissues - mostly absorbed by tissue with high water content |
|
SWD dosimetry |
qualitative (1-4 scale from pt) quantitative (total EM NRG to tissues) |
|
SWD Duration |
15-20 minutes |
|
SWD indications |
moderate, substantiated for OA and ankle sprain |
|
SWD contraindicaitons |
big 5 metal, implanted electrical devices pacemakers eyes, testes growing epiphyses of growing children acute injury/inflammation recent/potential hemorrhage thrombophlebitis |
|
SWD precautionss |
follow instructions other pts. must be at least 15 ft away adequate toweling |
|
SWD screenings |
sensation mentation circulation metal in/on pt. skin sensory discriminatory test |
|
SWD adverse effects |
burns fire |
|
SWD set up |
remove clothing from treatment area remove metal postition pt. inquire pain level |
|
SWD pt should feel |
warming sensation post - ask from subjective pain level |
|
SWD documentation |
mode/method electrode placement pre/post modality measures qualitative scale quantitative pt. reaction |
|
low level last therapy (LLLT) |
use of monochromatic light therapy within visible or infared wavelengths of EMS, used to alter cell behavior w/out heating tissue |
|
fundamental biophysical properties of LLLT |
monochromatic (all photons must have same wavelength) collimated (not divergent) coherent (all waves move in phase w/ each other) EMS Spectrum - 100 nm - 1 mm |
|
LLLT types |
gaseous HeNE GaAs/GaAlAs semiconductor or diode lasers |
|
LLLT treatment needs |
active medium resonance chamber energy source |
|
HeNe Laser |
active medium is He & Ne mixture resonance chamber - glass tube with mirrors on end energy source - electric current |
|
Biophysical characteristics of LLLT |
resting/ground state pumping and population inversion spontaneous emission stimulated emission |
|
how does a diode laser work |
electrons cross junction, photons released at specific wavelength resonance chamber is gap in junction btwn semiconductor material energy source - electrical current |
|
cellular effects of LLLT |
stim macrophages increase ATP production stimulate fibroblasts/increase collagen altered nerve conduction vasodilation |
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clinical effects of LLLT |
wound/fracture healing musculoskeletal disorders pain management *more research needed |
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Laser penetration |
absorption scatter/disperse/transmission through tissue reflection/bounces off |
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HeNe direct effect penetration |
first .5 cm of tissue |
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GaAs/GaAlAs penetration |
direct effect: first 2-5 cm indirect effect: 1-5 cm |
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LLLT indications |
wound/ulcer management pain management of local/systemic disorders |
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LLLT contraindications |
over eye and neoplastic lesion over ab of pregnant women over hemorrhagic region/heart over vagus n./sympathetic region of cardiac pt over photosensitive skin and infected areas over bone epiphyseal regions |
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LLLT application |
with hand held or cluster probe contact or no contact manual gridding manual or auto scanning |
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LLLT dosimetry |
based on power, power density, NRG density |
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LLLT mode |
pulsed or continuous |
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LLLT superficial treatment |
HeNe Laser |
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LLLT deep treatment |
semiconductor laser |
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How large should the treatment area be for LLLT treatment |
handheld: <3 cm2 cluster probe: >3 cm2 |
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Documentation for LLLT |
type of laser power output (mW) probe/beam type and surface area mode of delivery (cont. or pulsed) Method therapeutic dose/NRG density total treatment surface area total irradiation time |
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methods of LLLT |
direct contact non contact gritting manual scan auto scan |