physical modality - Faculty of Medicine, Thammasat … modality.pdfPhysiologic effects of Heat •...
Transcript of physical modality - Faculty of Medicine, Thammasat … modality.pdfPhysiologic effects of Heat •...
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Physical modality
Chuenchom Chueluecha MD.Department of Physical medicine and Rehabilitation
Faculty of medicine, Thammasat University
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Physical modality
• Heat • Cold• Water• Electromagnetic waves• Electricity• Pressure• Traction ,manipulation, massage
Always used as adjuncts therapy***adjuncts therapy***
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Factor to consider in Modality selection
• Target tissue
• Depth of heating or cooling desired
• Intensity of heating or cooling desired
• Body habitus
• Co-morbid conditions
• Specific patient features
• Age
• Sex
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Heat
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Physiologic effects of Heat• Hemodynamic
– Increase blood flow– Decrease chronic inflammation– Increase edema– Increase bleeding
• Joint and connective tissue– Increase tendon extensibility– Increase collagenase activity– Decrease joint stiffness
• Miscellaneous effects– Decreased pain– General relaxation effect
Therapeutic heat 40-45 oC
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General use of Heat• Musculoskeletal conditions • Pain• Arthritis• Contracture• Muscle relaxation• Chronic inflammation
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General precautions for the use of Heat
• Acute trauma, inflammation• Impaired circulation• Bleeding diathesis• Edema• Large scars• Impaired sensation• Malignancy• Cognitive or communication deficits that preclude
reporting of pain
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Classification of various types of HeatingDepth Main mechanism of
energy transferHot packs/heating pads
SuperficialSuperficial ConductionConduction
Paraffin baths SuperficialSuperficial ConductionConduction
Radiant heat SuperficialSuperficial RadiationRadiation
Ultrasound DeepDeep ConversionConversion
Short wave diathermy
DeepDeep ConversionConversion
Microwave DeepDeep ConversionConversion
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Superficial heat
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Hot packs or Hydrocollator packs
• Silicon dioxide encased in a canvas pack
• Moist heat
• Treatment time 20-30 min.
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Effect on target tissue temperature after applied hot pack for 30 minute
• At posterior thigh : 3.3 and 1.3oC rise at 1-and 2-cm depth ,respectively
• At Brachioradialis muscle : 1.1oC rise at 4cm depth• Intra-articular (Knee) : 1.2oC increase
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Paraffin baths
• Paraffin wax : Mineral oil = 7:1 or 6:1
• Treatment temperature are 52.2 to 54.4 oC but low heat conductivity
• Treatment time 20 minutes
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Paraffin bath is useful in
• Irregular surface organ such as distal limbs• Rheumatoid arthritis at hand or foot• Contracture at hand or foot
Contraindication
• Fresh wound or un-heal wound• Skin infection• Impaired sensation• Allergy to Paraffin
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Deep heat
17
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Ultrasound
• Depth muscle-bone interface
• Effects of ultrasound – Thermal effect– Nonthermal effect
• Duration 5-10 min/field
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Clinical use in thermal effect
• Soft tissue and tendon shortening• Pain control• Reduce muscle spasm• Subacute to chronic phase of healing or inflammation• Tendon injuries• Resorption of calcium deposits• Plantar warts
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Clinical use in non-thermal effect
• Soft tissue repair• Tissue regeneration• Dermal Ulcers• Surgical skin incisions• Bone healing• Phonophoresis• Acute tendon injury• Herpes Zoster infection
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Ultrasound precaution
1. General heat precautions2. Near Brain ,eyes ,reproductive organs3. Near gravid or menstrual uterus4. Near pacemaker5. Near spine ,Laminectomy sites6. Skeletal immaturity7. Methyl methacrylate or highly cross link
polyethylene
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Short wave diathermy
• Conversion of electromagnetic energy to thermal energy
• Increased temp. 4-6 °C
• Depth 4-5 CM in muscle***muscle***
• Treatment time 20-30 min
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Shortwave diathermyPhysiologic effects
• Thermal effect : vasodilate, rate of NCV, elevation of pain threshold, alter m. strength, accelerate enzymatic activity, soft tissue extensibility
• Nonthermal effect : microvascular perfusion, alter cell membrane function & cellular activity growth factor activation, macrophage activation
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Clinical use in thermal diathermy• Pain control• Accelerated healing• Decreased joint stiffness or contracture• Increase joint ROM if apply with stretching
Clinical use in non-thermal diathermy• Control pain and edema• Wound healing• Nerve and bone healing (acute)
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Precautions
1. General heat precautions
2. Metal (jewelry, pacemakers, intrauterinedevices, surgical implants, etc.)
3. Contact lens, eyes, testes
4. Gravid or Menstrual uterus
5. Skeletal immaturity
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Comparison between US and SWDUltrasound Ultrasound diathermydiathermy
Short wave Short wave diathermydiathermy
EnergyEnergy Acoustic vibrationAcoustic vibration ElectromagneticElectromagnetic
Target tissueTarget tissue Deep muscle ,deep Deep muscle ,deep jointjoint
Superficial muscle Superficial muscle ,superficial joint,superficial joint
Area Area Small Small Large Large
Time Time 55--20 min.20 min. 2020--30 min.30 min.
Intensity indicatorIntensity indicator Therapist (0.5Therapist (0.5--2 2 watt/cm2)watt/cm2)
Patient perceptionPatient perception
Serious precautionSerious precaution Methyl Methyl methacrylatemethacrylateLaminectomyLaminectomy
Metal implantMetal implantCardiac pacemakerCardiac pacemaker
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Cold
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Physiological effects of Cold• Hemodynamic
– Immediate cutaneous vasoconstriction– Delayed reactive vasodilatation– Decreased acute inflammatory response
• Neuromuscular – Slowing of nerve conduction velocity– Decreased group Ia, Ib, II fiber firing rates– Decreased muscle stretch reflex amplitudes – Decreased muscle fatigue
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Physiological effects of Cold
• Joint and connective tissue– Increased joint stiffness– Decreased tendon flexibility – Decreased collagenase activity
• Metabolic effects– Decrease metabolic rate
• Miscellaneous– Decreased pain– General relaxation
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Classification of various types of Cooling
DepthDepth Main form of Main form of energy transferenergy transfer
Cold packsCold packs SuperficialSuperficial ConductionConduction
Ice massageIce massage SuperficialSuperficial ConductionConduction
Cold water Cold water immersionimmersion
Superficial Superficial Conduction Conduction
CryotherapyCryotherapy--compression unitscompression units
Superficial Superficial Conduction Conduction
VapocoolantVapocoolant sprayspray Superficial Superficial EvaporationEvaporation
Whirlpool bathsWhirlpool baths Superficial Superficial ConvectionConvection
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General Uses
• Acute traumatic condition• Musculoskeletal conditions • Acute and chronic pain• Acute swelling• Myofascial pain• Following certain orthopedic surgeries • Component of spasticity management• Emergent treatment of minor burns
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General Precautions• Cold intolerance• Cold hypersensitivity• Cryotherapy-induced neurapraxia/axonotmesis
Cryopathies• Cryoglobulinemia• Paroxysmal cold hemoglobinuria• Raynauld’s disease/phenomenon • Arterial insufficiency• Impaired sensation• Cognitive or communication deficits that preclude
reporting of pain
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• Hydrocollator pack, Endothermic chemical gel pack, Ice pack
• Depth 2 cm.• Decrease temp in skin
10 oC, in muscle 5oC• Duration is 20-30 min
Cold packs
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Ice massage
• Directed application of ice to the skin using gentle stroking motions
• Use for localizing symptoms
• Treatment time depend on the amount of subcutaneous tissue
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Cryotherapy-compression units
•A cuff or boot and pneumatically compressed
•10-25oC
•Use in acute musculoskeletal injury with soft tissue swelling
• After some surgical procedures
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•Used by some practitioners to treat myofascial and musculoskeletal pain syndromes
Vapocoolant Spray
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Hydrotherapy
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Hydrotherapy application
• Orthopedic problems- Decreased weight bearing- Velocity-dependent resistant- Closed or open chain exercise- Slowed bone density loss
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Hydrotherapy application•• Spine rehabilitationSpine rehabilitation
–– Cannot tolerate axial or Cannot tolerate axial or gravitational loadgravitational load
–– Increase support in strength or Increase support in strength or proprioceptivesproprioceptives deficitdeficit
–– ↓↓ Risk of compression fractureRisk of compression fracture–– Transition from a wet to dry Transition from a wet to dry
environment if patient are environment if patient are doing well in water to meet doing well in water to meet functional trainingfunctional training
•• NeurologicNeurologic disordersdisorders–– Cerebral palsyCerebral palsy–– Multiple sclerosisMultiple sclerosis
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Hydrotherapy application• Cleansing effects
–– Soften and remove debris in woundSoften and remove debris in wound–– Controllable force by rate of flowControllable force by rate of flow–– Quickly & easily get into & out of Quickly & easily get into & out of
contoured areascontoured areas–– AntimicrobialsAntimicrobials–– SurfactantSurfactant
• Psychological effects–– Warm waterWarm water–– Cold waterCold water
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• Whirlpool• Hubbard tank• Contrast bath • Non-immersion irrigation
device• Exercise pool
Form of Hydrotherapy
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Whirlpool bath
• Used for Open wounds, exercise, control pain in
limited areas of body• 33-36oC in chronic wound• 40-43oC in joint stiffness, RA• 20-30 min
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• Full body immersion• Temperature 34-36˚C• Use for
– Large area of burns, other painful conditions that affect large areas
– ROM exercise for multiple areas
– Ambulation
Hubbard Tank
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Contrast Bath
• Alternately immersing in hot (42-45C) and then cold (8.5-12.5C) water
• 30 min, begin with 10-min immersion in hot,1 min cold and 4 min hot
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Contrast Bath
• Effect – Control edema
– Desensitization
• Used for– Rheumatologic
disease– Neuropathic pain– Chronic pain
syndrome such as CRPS
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• Shower cart, hand-held showers, syringes, electric pulsatile irrigation devices
• Treatment of open wounds
Non-immersion Irrigation Device
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Full body immersion form
• Contraindication– Cardiac instability – Infection condition– Bowel incontinence– Severe epilepsy– Suicidal patient
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Full body immersion form
• Adverse effect – Drowning– Burn : ( hot water ) – Fainting : ( hot water )– Bleeding– Hyponatremia– Infection– Aggravation edema ( hot water )
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Electricity
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Uses of Electrical Currents
• Innervated muscle stimulation• Denervated muscle stimulation• Pain control (TENS)• Tissue healing • Iontophoresis
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Innervated muscle
• NMES – Strengthening– ROM– Facilitate voluntary
control– Spasticity
• FES– Scoliosis– Hemiplegia– CP– SCI
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Denervated muscle
• Decreasing muscle atrophy• Enhancing nerve regeneration and muscle
reinnervation
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Pain control Transcutaneous Electrical Nerve Stimulation
(TENS)
• Gate Control theory• Opiate-mediated Control• Enhancement of tissue healing• Modification of the flow of
energy in acupunturemeridians
• Placebo effects
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TENS
Common uses1. Musculoskeletal pain2. Post traumatic pain3. Post surgical pain4. Peripheral nerve injury 5. Peripheral neuropathy6. Phantom limb pain7. CRPS
Contraindications1. Stimulation over carotid
sinus2. Pace makers or
implanted cardiac defibrillator
3. Pregnancy4. Allergic to the
electrodes or gel5. Skin infection, open
wound or vasculitis at applying area
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Adverse Effect
• Depend on the current amplitude and voltage
• Excessive heating of tissues
• Electrochemical burn (from DC)
• Ventricular fibrillation ~100 mA
• Respiratory arrest
• Death
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Pressure
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Pneumatic pump
• Effective in edema control• Should be used if elevation or compressive
wrap alone are ineffective• Contraindication
1.Deep vein thrombosis2.Cellulitis3.Compromised perfusion4.Severely impaired sensation
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Traction
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TractionPhysiologic effects• Elongation of C-spine• Elongation of L-spine• Relaxing muscle spasm• Retraction of herniated disc
Technique• Manual• Electrical motorized
device• Free-weight-and-pulley-
system• Inversion traction
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Traction• Intermittent or continuous
traction
• Weight C-spine = 25-50 lbs( 1/10-1/7 of BW)
L-spine = 50-100 lbs( 1/3-1/2 of BW)
• Duration : 20 minutes
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Indications
1. Any condition involving irritation or compression of nerve root • Radiculopathy• Herniated nucleus pulposus
2. Muscle relaxation• Nonspecific low back pain• Acute cervical/lumbar strain
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General Contraindications• Osteomyelitis/discitis/infection• Spinal cord tumor• Unstable fracture• Severe osteoporosis• Untreated HT (for inversion traction)• Primary/metastatic bone tumor• Clinical signs of myelopathy• Coronary artery disease• Severe anxiety• Inadequate expertise
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ContraindicationsCervical • Central intervertebral disc
herniation• RA & other CNT diseases• Carotid or vertebral a.
insufficiency
Lumbar• Pregnancy• Cauda equina
compression• Restrictive pulmonary
diseases/other respiratory problems
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Manipulation
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Manipulation
• “The use of the hands in the patient management process using instructions and maneuvers to maintain maximal, painless movement of the musculoskeletal system in postural balance”
• Goals– To improve motion in restricted areas– To help maintain optimal body mechanics
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Indication
• Any musculoskeletal problems demonstrating somatic dysfunction
• Impaired or altered function of related components of the somatic (body network) system
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Indications
• Acute or chronic neck pain
• Thoracic pain• Rib pain• Functional &
mechanical low back pain
• Chronic low back pain• Bulging intervertebral
discs• Facet syndrome• Piriformis syndrome• Sciatica• Headache• Sacroiliac syndrome
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Contraindications
• Vertebral malignancy• Infection• Inflammation• Cauda equina syndrome
• Myelopathy• Multiple adjacent
radiculopathies• Joint instability (Fx,
dislocation)• Cervical rheumatoid
disease• Inadequate expertise
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Side Effects
• Transient discomfort 6-72 hrs.• Minor autonomic effects : ↑perspiration, early/ ↑
menstruation, etc.
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Complications• Mostly from
contraindicated procedures
• Thrust maneuver in cervical region →vascular insult to vertebrobasilar system or spinal cord
• Lumbosacral → very rare
• Some with craniosacraltherapy
• No report from other non-thrust techniques
• Stroke, SCI, cardiac arrest, death
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Massage
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Massage
A group of procedures which are usually done with the hands, such as friction,kneading,rolling and percussion of the external tissues of the body in variety ways, either with a curative,palliative,or hygienic view
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Effects of Massage
• Mechanical effects• Reflexive effects• Neurologic effects• Psychological effects
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Indication of massage
• Indication– Low back pain– Neck pain– Fibromyalgia– Arthritis, bursitis, tendinitis, fascitis– Neuromas– Complications associated with MS, CP, hemiplegia, SCI,
RSD, contracture, etc.
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Types of Massage• Basic Western Massage Procedure
“Swedish system”a) Effleurage (Stroking)b) Petrissage (Compression)c) Tapotement (Percussion)d) Friction (Deep friction)
• Others : Acupressure, Shiatsu, reflexology &Auriculotherapy, etc.
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Contraindications of massage
• Malignancy• Cellulitis• Lymphangitis• Area of recent trauma or bleeding• Open area• DVT• Caution : anticoagulant• Special care : osteoporosis
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Other modality
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Laser
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Monochromatic infrared photo energy
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Magnetic stimulation
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Hyperbaric oxygen therapy
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Physical modality
• Therapy that uses physical forces to speed healing and lessen pain
• Seldom uses in isolation
• Almost always used as adjuncts therapy***adjuncts therapy***
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