10 Questions
Which statement accurately describes the relationship between tissue condition and frequency selection in laser therapy?
Healthy tissue shows different frequencies compared to injured tissue, and the frequency closest to the injured tissue should be selected.
What is the recommended frequency range for treating acute pain and acute wounds using laser therapy?
Low frequency
In the context of intermittent laser therapy methods, what is the typical range of pulses per second?
1-80 pulses per second
For open wounds, what is the recommended range of pulses per second in laser therapy?
4-10 pulses per second
How often should laser therapy treatments be administered, according to the provided information?
2-3 times a week
Which laser type is commonly used in physical therapy and is known for its superficial penetration and photochemical effects?
Helium-Neon (He-Ne) laser
Which laser type is suitable for treating deeper tissues such as joints, tendons, muscles, and fascias, due to its deeper penetration?
Gallium-Arsenic (GaAs) laser
Which laser type is recommended for treating large areas, according to the provided information?
Lasers containing several wavelengths in the form of beams
According to the information provided, which conditions are suitable for the use of red beam lasers, such as the Helium-Neon (He-Ne) laser?
Chronic pain, wounds, ulcers, scar tissue, and skin diseases
Which statement accurately describes the effects of laser therapy on tissue?
Laser therapy creates both photochemical and thermal effects on tissue.
Study Notes
Indications of Laser Treatment
- Healing wounds
- Dermatology
- Burns
- Herpes (shingles)
- Ulcer
- Acne
- Fractures
- Muscle spasm
- Nerve tissue healing
- Pain in disc herniation
- Osteoarthritis
- Syatalgia
- Sports injuries
- Myalgia
- Periatritis
- Psoriasis (psoriasis)
- Tendinitis, tenosynovitis
- Rheumatoid arthritis
- Chronic pain
- Circulatory disorders
- Migraine
Contraindications of Laser Treatment
- Throughout pregnancy
- During photosensitive drug use
- Malignancy
- Infants
- Eye problems
- Epileptic diseases
- On thyroid and endocrine glands
- In infectious skin diseases
- During menstruation or varicose veins
- Pacemaker
Things to Consider in Laser Treatment
- No reflective surfaces in the application room
- Clean skin area
- Hand washing to remove static energy
- Use of glasses that do not transmit laser beams
Laser Treatment Examples
- Tissue Healing (no direct contact between the probe and the skin)
- Continuous irradiation method for acute wounds
- 10 pulse per second method for chronic wounds
- Probe kept at a distance of 2 mm from the skin
- Irradiation at 90 seconds/cm2
- Enzymatic histochemical changes occur
- Vascularization is accelerated
Physiological Effects of Laser Beams
- Increased capillary blood flow
- Arteriole vasodilation
- Stimulation of cell metabolism
- Mitochondrial activity increases and ATP production accelerates
- Blood cortisol levels increase as an anti-inflammatory effect
- Reduces edema and inflammation
- Increases the threshold perception level of pain nerve fibers
- Contributes to wound healing by increasing vascularization
- Creates an antibacterial effect
- Increases antibody production
Laser Application
- Dosage depends on force, duration of radiation, and tissue resonance
- Tissues are affected by absorbed radiation
- More absorption occurs in tissues containing liquid
- Dosage is defined by type, wavelength, average power, maximum power, duration, application area, and continuous or discontinuous
- Treatment dosage is average power density per cm2 (mw/cm2 or J/cm2)
- 50 mw/cm2 or less in applications
- Dosage is adjusted between 0.1 J/cm2 - 4 J/cm2
Laser Application Frequency
- Between 2Hz and 300kHz
- Frequencies of HeNe and GaAs Laser devices are compatible with natural tissue vibration frequency
- Injured tissue shows different frequencies compared to healthy tissue
- Low frequency for acute pain and acute wounds, high frequency for chronic pain
- Intermittent methods: 1-80 pulses per second
- Open wounds: 4-10 pulses per second
Treatment Frequency
- Application should be made 2-3 times a week
Laser Used in Physical Therapy
- Helium-Neon (He-Ne) lasers
- Infrared Gallium-Arsenic (GaAs) lasers
- Gallium-Aluminum (GaAl) lasers
Wavelengths
- He-Ne laser: 632.8-660 nm, red laser, superficial physical agent, absorbed in <1cm depth
- GaAs laser: 800-1000nm, deeper penetration, used for joints, tendons, muscles, and fascias
- Lasers containing several wavelengths: used for treating large areas
Explore the various indications and contraindications of laser treatment in dermatology, wound healing, muscle spasm, fractures, arthritis, and more. Learn about when laser treatment is beneficial and when it should be avoided.
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