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Therapeutic Ultrasound

Therapeutic ultrasound application providing deep-tissue heating with sound waves.

A physical therapy modality in which 1-3 MHz sound waves heat deep tissues such as muscles, tendons and joint capsules to improve circulation and tissue extensibility.

Indication

  • Tendinitis and tendinopathy (such as shoulder, elbow or Achilles tendinopathy)
  • Symptom management in bursitis and joint capsule inflammation
  • Muscle spasm and myofascial pain syndrome
  • Circulatory support during the recovery phase after soft-tissue injuries
  • Adhesions and limited range of motion following surgery or trauma
  • As part of a physical therapy programme for chronic low back and neck pain

Preparation

  • Skin in the treatment area should be clean and dry, with no creams or lotions applied
  • The clinician should be informed of any open wounds, sutures or skin infections
  • Metal implants, pacemakers or pregnancy must be reported
  • Comfortable clothing that allows access to the treatment area is preferred

How it's performed

  1. The patient is positioned appropriately and the area is exposed
  2. A special gel that conducts the sound waves is applied to the treatment area
  3. The ultrasound head is moved over the skin in circular motions
  4. Frequency (typically 1 or 3 MHz) and intensity are adjusted according to tissue depth
  5. A session lasts about 5-10 minutes; on average 10-15 sessions are applied
  6. The application is generally painless aside from a mild warmth

Post-procedure

  • Brief warmth and mild redness over the area can occur after treatment
  • Results are more durable when combined with an exercise programme
  • Regular home exercises between sessions are recommended
  • Significant improvement is usually evaluated within 2-4 weeks
  • If the response is inadequate, alternative treatment options are reassessed

Risks

  • Ultrasound alone is rarely sufficient; it is applied alongside exercise and other modalities
  • It is not used over acute inflammation, tumour sites, the abdomen of pregnant patients, or growth plates
  • Areas around pacemakers, metal implants and skin with reduced sensation are evaluated carefully
  • Excessive intensity or prolonged application can cause thermal tissue damage
  • Effect size varies between individuals; the level of evidence is moderate

FAQ

Is therapeutic ultrasound painful?

No. Apart from a mild warmth or pressure sensation, it is generally painless. Any noticeable burning or discomfort should be reported to the physiotherapist so the device settings can be adjusted.

How many sessions are usually needed?

An average of 10-15 sessions is planned, individualised by diagnosis, symptom duration and response to treatment. Ultrasound should be evaluated together with exercise and other physical therapy methods, not in isolation.

Is it safe to use a home ultrasound device?

Medical-grade ultrasound applications are best performed by a physical medicine specialist or physiotherapist who can assess the indication, contraindications and appropriate dose.

Can ultrasound alone resolve my complaint?

It is not considered a stand-alone treatment. For lasting results it is combined with stretching, strengthening, postural exercises and lifestyle modifications.