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Doctors in Scotland are using ultrasound to help patients with severe bone fractures, and finding it speeds recovery time by more than one-third. The ultrasonic pulses induce cell vibration, which doctors say stimulates bone regeneration and healing.

The technology is similar to the type used on pregnant women to image growing fetuses, but it uses a different sound frequency and a different pulse rate, according to the BBC. Patient Gary Denham received the treatment for a shattered ankle he sustained after falling 20 feet. “It's got a wee strap and that goes round where the break was,” he told the BBC.

A water-based gel is applied to a transducer like the type seen above, which then goes inside the strap and stays there for 20 minutes. The patient doesn’t feel anything, but the sound waves penetrate tissue to stimulate cellular activity.

Typically, Denham’s type of injury would take six to 12 months to heal properly — if it does at all — but his foot healed after four months, according to his physician, Dr. Angus MacLean. He said evidence suggests the ultrasound speeds up healing by about 40 percent.

Scottish doctors first developed ultrasound as a diagnostic tool in the 1950s, using adapted sonar technology from Glasgow’s Western Infirmary, the BBC explains. It’s now used commonly for a wide range of diagnostic and therapeutic purposes. But it is only now, 50 years later, that its potential for aiding the healing process is being unlocked.

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