| Feature | Ultrasound | Laser Therapy | NMES |
|---|---|---|---|
| Mechanism | Sound waves (mechanical) | Light energy (photons) | Electrical current |
| Depth | 2–5 cm deep tissue | 2–4 cm penetration | Superficial muscles |
| Best for | Tendons, scar tissue, joints | Inflammation, wounds | Muscle strengthening |
| Sensation | Gentle warmth | None–mild warmth | Tingling, muscle twitch |
We use professional-grade therapeutic ultrasound units with adjustable frequency (1 MHz and 3 MHz), intensity, and mode settings — enabling precise treatment tailored to each tissue type and condition.
Ultrasound is most effective when combined with other modalities. At RehabVet, we integrate it into multimodal programmes with manual therapy, exercises, hydrotherapy, and laser therapy for optimal results.
Every ultrasound treatment is delivered by therapists with internationally recognised rehabilitation qualifications, under direct veterinary supervision from Dr. Sara Lam BVSc.
We don't apply generic settings. Treatment parameters — mode (continuous vs pulsed), frequency, intensity, duration, and technique — are selected based on your pet's specific diagnosis and treatment phase.
Our therapists have extensive experience with both canine and feline patients. Treatment parameters are adapted for each species' unique tissue characteristics and body size.
We measure outcomes objectively — joint range of motion, tissue flexibility, pain scores, and functional mobility — so you can see concrete improvement, not just subjective impressions.
The session continues with other prescribed modalities — manual therapy while tissues are warm and extensible, therapeutic exercises to build on improved flexibility, or hydrotherapy for active strengthening.
Delivers sustained deep tissue heating — reaching muscles, tendons, and joints that surface heat packs cannot.
Therapeutic ultrasound is completely non-invasive — there are no needles, no incisions, and no sedation required. The handheld transducer glides over the skin surface, delivering sound waves deep into the tissue. Most pets find the gentle warmth soothing, and many relax or fall asleep during treatment. Sessions are stress-free for even anxious patients.
Ultrasound waves stimulate fibroblast activity and collagen production at the cellular level, accelerating the repair of damaged tendons, ligaments, muscles, and joint capsules. Studies in veterinary rehabilitation demonstrate that therapeutic ultrasound can reduce healing time by 20–30% compared to rest alone — particularly important for tendon and ligament injuries where blood supply is naturally limited.
Ultrasound provides analgesia through two mechanisms: thermal effects (gentle deep heating relaxes muscle spasm and increases pain threshold) and non-thermal effects (acoustic streaming and cavitation modulate pain signalling at the cellular level). This dual mechanism provides effective pain relief for both acute injuries and chronic conditions.
Therapeutic ultrasound modulates the inflammatory response — reducing excessive inflammation while supporting the body's natural healing process. The increased blood flow and cellular activity promoted by ultrasound help clear inflammatory mediators and debris from injured tissues, reducing swelling and discomfort.
Ultrasound waves increase local blood flow to the treated area, delivering oxygen and nutrients essential for tissue repair while removing metabolic waste products. This enhanced circulation is particularly beneficial for structures with naturally poor blood supply — tendons, ligaments, and joint capsules — where healing is often slow.
One of therapeutic ultrasound's most valuable applications is breaking down restrictive scar tissue and adhesions. By applying targeted sound energy, ultrasound can soften and remodel disorganised collagen fibres, restoring flexibility and function to tissues that have healed with excessive scarring. This is essential after surgery, fractures, and tendon injuries.
Ultrasound increases the extensibility of collagen-rich structures — joint capsules, tendons, and ligaments — making them more responsive to stretching and mobilisation. When combined with manual therapy and therapeutic exercises, ultrasound helps restore range of motion in stiff or contracted joints more effectively than manual therapy alone.
The thermal effects of ultrasound penetrate deeper than surface heat packs, reaching muscles that lie beneath multiple tissue layers. This deep heating relaxes muscle spasm, reduces trigger point sensitivity, and prepares muscles for therapeutic exercise — making it an ideal pre-treatment before manual therapy sessions.
Therapeutic ultrasound integrates seamlessly with manual therapy, therapeutic exercises, laser therapy, and hydrotherapy. At RehabVet, we typically use ultrasound as part of a multimodal treatment programme — preparing tissues for stretching, enhancing the effects of exercise therapy, and accelerating recovery between sessions.
Unlike medications that carry risks of organ damage with prolonged use, therapeutic ultrasound can be safely repeated over extended treatment periods. There are no systemic side effects, no drug interactions, and no withdrawal concerns. This makes it ideal for managing chronic conditions where ongoing treatment is needed.
From tendon injuries to post-surgical scar tissue — therapeutic ultrasound addresses a wide range of musculoskeletal conditions in dogs and cats.
Tendon injuries — including supraspinatus tendinopathy, Achilles tendon strains, and biceps tendinitis — are among the primary indications for therapeutic ultrasound. The treatment stimulates collagen synthesis and remodelling, accelerating tendon repair while improving the quality and organisation of healing tissue. Similarly effective for ligament sprains and partial tears.
After orthopaedic surgery (TPLO, TTA, fracture repair, FHO), scar tissue can restrict joint motion and cause ongoing discomfort. Therapeutic ultrasound breaks down adhesions and promotes organised collagen remodelling — restoring flexibility to tissues that have healed with excessive scarring. Particularly valuable when combined with manual therapy and stretching.
Ultrasound provides symptomatic relief for arthritic joints through deep heating, improved circulation, and inflammation modulation. When used as part of a comprehensive arthritis management programme — alongside manual therapy, therapeutic exercises, and weight management — ultrasound contributes to reduced pain and improved joint function.
Acute and chronic muscle injuries respond well to therapeutic ultrasound. The treatment reduces inflammation, promotes muscle fibre repair, and prevents the formation of restrictive scar tissue within the muscle belly. Deep heating also relieves muscle spasm and prepares injured muscles for gentle therapeutic exercise.
When joints become stiff due to prolonged immobilisation, post-surgical fibrosis, or chronic disuse, ultrasound increases the extensibility of the periarticular structures — making them more responsive to stretching and mobilisation. This is particularly valuable in the early post-surgical period when joint range of motion needs to be restored.
For pets with ongoing musculoskeletal pain — whether from arthritis, old injuries, or degenerative conditions — therapeutic ultrasound provides drug-free pain relief through both thermal and non-thermal mechanisms. Regular ultrasound treatments can reduce reliance on pain medications and improve comfort and quality of life.
Therapeutic ultrasound at low intensities (pulsed mode) has been shown to accelerate wound healing by stimulating cell proliferation and collagen deposition. It is particularly useful for chronic or non-healing wounds where conventional management has plateaued.
Cats benefit from therapeutic ultrasound just as dogs do — particularly for arthritis (vastly underdiagnosed in cats), post-surgical recovery, and chronic pain. The gentle, non-invasive nature of ultrasound makes it well-tolerated by feline patients. Treatment parameters are adapted for cats' smaller body size and unique physiology.
| Feature | Underwater Treadmill (RehabVet) | Swimming Pool |
|---|---|---|
| Water depth control | Yes — adjustable to the centimetre | No — fixed depth |
| Speed control | Yes — variable treadmill speed | No — depends on the dog |
| Suitable for non-swimmers | Yes | No |
| Weight-bearing exercise | Yes — promotes natural gait | Limited — swimming is non-weight-bearing |
| Post-surgical rehab | Excellent — controlled, safe movement | Risky — hard to control movement |
| Gait retraining | Yes — treadmill encourages normal walking | No |
| Muscle building | Targeted — resistance + walking gait | General — swimming uses different muscles |
| Best for | Surgery recovery, arthritis, IVDD, neurological rehab | General fitness, cardiovascular conditioning |
Underwater treadmill therapy
Comprehensive rehabilitation
Manual therapy & exercises
Pain management & healing
Full recovery programmes
Chinese veterinary medicine