Ultrasound
can be used as a therapy as well as a diagnostic technique. Ultrasound are sound waves with a pitch
above the level of human hearing. When
used as a therapy the frequency (rate of repetition of the waves) is different
to that used for diagnostic ultrasound. As
I explained in my ultrasound
diagnostic blog these high frequency waves create an echo (which is what
gives the picture).
However,
the ultrasonic waves also stimulate blood flow and cell activity, which aids
healing. This is because the sound waves
are able to raise the temperature of deep tissues which means there is much
more potential in therapy than just applying heat to the skin surface. It will not heat the temperature of the skin
surface whilst doing this!
The
increased activity in the cells causes an increase in oxygen to the area which
then again increases the blood flow. Therefore,
further increasing oxygen travelling to the area, and the increase in blood
also brings more nutrients to the cells.
The increased cell activity also causes an increase in waste removal
from the area, many of the waste products contribute to pain felt.
Ultrasound
was first used in 1938 to treat sciatica.
It has now been used in hospitals for over 50 years.
Used
for:
·
Improving joint mobility
·
Tendonitis or ligament damage
·
Muscle spasm
·
Bursitis
·
Scar tissue
·
Splints or other bony growths
·
Oedema
·
Pain relief in some circumstances
·
Wound healing
IMPORTANT:
·
Treatment should only be given on the advice of a vet.
·
If used incorrectly ultrasound can cause damage and harm.
·
Ultrasound therapy should not be used in cases of acute
sepsis because it increases the spread of infection. It also should not be used in tumour
treatment, on pregnant mares or horses with heart problems.
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Until next time!
Jo