Lapplication of therapeutic ultrasound in dogs

It is one of the devices that is most commonly used in physiotherapy, are sound waves much higher than the audible frequencies by humans, often used as a therapeutic tool 1 x 106 Hertz, i.e. 1 Mega-Hertz (MHz) are not audible for any mammal.
Usually in veterinary hospitals and clinics ultrasounds are used for scans ultrasound, using the same type of wave. The difference is the power, frequency and time of application.
In therapy we use frequencies from 1 MHz for deep treatments, up to 8 cm and frequency of 3 MHz for more superficial problems. The power ranges between 0.2 and 3 Watts square centimeter.

Effects on the tissues:

The main effect of the Ultrasound on the tissues it is anti-inflammatory. We usually use it on tendons, joints, or inflamed muscles; It has excellent results both in acute injuries like chronic lesions, although we must adjust the powers.

The analgesic effect is one of the most sought after in rehabilitation, normally when we desinflamamos a structure managed to reduce pressure in nociceptors which are the recetores in the body that sent painful signals, to reduce the pressure on these receptors, reduce your stimulation and therefore decrease the intensity of the signals that send to disappear, if there is no sign of painThere is no perception of it.

aplicación de ultrasonido a un perroWhen we have a fibrosis in different soft tissues: muscles, tendons and ligaments can be applied then pulsed and continuous ultrasound to maximum power so find a good effect desfibrosante.

Another classic application of ultrasound is the application in muscular contractions, with ultrasound can reduce them and even to eliminate them.

The Ultrasonic continuous heat generated by vibration of molecules and both the button and the continuous increase the permeability of the membrane, which is what favors along with the mobilization of the molecules the anti-inflammatory effect.


We have to apply the Ultrasonic moving the head all the time that lasts the treatment either by small circles or by following of rectilinear form that the sense of the treated tissues, if not we do so especially in continuous mode can damage tissues and produce Burns of importance.
You must use a means of contact, well contact gel either directly in direct immersion (with ultrasound).
It is also important to take into account the animal hair, hair hinders the transmission of ultrasounds and is therefore very interesting to be able to shave the dog before applying the ultrasound session.aparato de ultrasonidos

Time approx. 5-15 minutes
Power between 0.2 and 3 Watts/cm2
There are different measures of head according to the needs.


Can we use ultrasound in any dog that curse with pain, joint or pathology of soft tissue, such as tendinitis, the bursitis, arthritis, bruises or significant bruising? 

We can also use ultrasonicin chronic problems such as the Hip Dysplasia, elbow dysplasia,  osteoarthritis of the knee, or osteoarthritis of the hip.

All surgical interventions produce an inflammation of the tissues that have been intervened, ultrasound is a very good tool to control the inflammation and the post-surgical problems com the rupture of the cranial cruciate ligament, dislocation of the patella...


Toni Ramon

Physiotherapist specializing in animals

Technical Director of canine orthopedics


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