Dr. Vaishali Suri (P.T.)
What Is Therapeutic Ultrasound?
Therapeutic ultrasound (US) is an electrotherapy modality that uses sound waves (typically 1–3 MHz) to produce thermal and non-thermal effects in soft tissues. Unlike diagnostic ultrasound (used for imaging), therapeutic ultrasound is applied with a moving transducer head and is calibrated for tissue treatment rather than imaging. It is one of the most commonly used electrotherapy modalities in physiotherapy worldwide.
How It Works
Thermal effects: Continuous mode US heats deep tissues (ligaments, tendons, joint capsules) more effectively than superficial heat can penetrate. Heat increases tissue extensibility and metabolism, facilitating stretching and exercise. Non-thermal (mechanical) effects: Pulsed mode US causes cavitation (oscillation of gas bubbles) and acoustic streaming, which alter cell membrane permeability, reduce inflammation, and stimulate tissue repair without significant heating.
Conditions Treated
Therapeutic ultrasound is used for: tendinopathy (rotator cuff, Achilles, patellar, tennis elbow), ligament injuries, muscle strains, joint capsule tightness (frozen shoulder), bursitis, plantar fasciitis, and scar tissue management.
What to Expect During Treatment
Ultrasound gel is applied to the skin. The physiotherapist moves the transducer head slowly over the treatment area in small circles. Treatment typically lasts 5–10 minutes per area. You may feel a gentle warmth but should not feel pain. If burning is felt, the physiotherapist adjusts intensity immediately.
Ultrasound as Part of a Comprehensive Programme
Therapeutic ultrasound is an adjunct — not a standalone treatment. It provides the best results when used to prepare tissues for manual therapy and exercise, which address the underlying cause of the condition.
Ultrasound Therapy in Faridabad
At Realign Rehab Clinic, NIT-5, Faridabad, therapeutic ultrasound is one of several electrotherapy modalities we use. Book your physiotherapy assessment today.