Long-Wave Diathermy (LWD) Machine

Key Clinical ApplicationsLWD is primarily used to manage pain and improve mobility in musculoskeletal conditions: drgeetanjaliphysiotherapist.com +1

• Chronic Pain & Stiffness: Effective for low back pain, cervical spondylosis, and frozen shoulder.
• Joint Disorders: Frequently used for osteoarthritis (arthrosis), rheumatoid arthritis, and joint contractures.
• Soft Tissue Injuries: Treats tendinitis, bursitis, muscle spasms, and ligament injuries like ankle sprains.
• Rehabilitation: Useful for post-surgical recovery and scar tissue management. drgeetanjaliphysiotherapist.com +4

Technical Features & Advantages

Feature

Long-Wave Diathermy (LWD)

Frequency

1 MHz (much lower than the 27.12 MHz of Short-Wave)

Penetration

Up to 4 cm (approx. 2 inches) deep into tissues

Portability

Typically lightweight (approx. 2–4 kg) compared to 40+ kg Short-Wave machines

Safety Profile

Higher safety margin with lower power output (around 10–75 Watts)

Interference

Minimal electrical interference with other clinic equipment

How It Is UsedThe machine uses a capacitor field method to generate heat. A physiotherapist applies specialized LWD cream to the treatment area to act as a coupling medium. Two electrodes—one active (held by the therapist or placed on the patient) and one inactive—are used to deliver the current. Treatments typically last 15 to 20 minutes. drgeetanjaliphysiotherapist.com +3Important PrecautionsLWD should not be used in the following circumstances:

• Metal Implants: Although some sources suggest it is safer than short-wave, most guidelines advise avoiding areas with metal pins, dental fillings, or pacemakers due to burn risks.
• Pregnancy: Avoid application over the abdomen or pelvis.
• Specific Conditions: Malignant tumors, active bleeding, acute infections, or areas with impaired skin sensation. www.physiotherapyequipments.com +4

Would you like to see a comparison table between Long-Wave and Short-Wave Diathermy to help decide which is better for a specific injury?This is for informational purposes only. For medical advice or diagnosis, consult a professional. AI responses may include mistakes.