August 16, 2019 -- A recent case
study authored by members of the department of radiology and a Health Center clinician
was published in Journal of Ultrasound. It reported that an 8-year-old
patient with Duchenne muscular dystrophy (DMD) displayed increased sonoelastographic
measures (hardening) of lower extremity muscles when compared with an
age-matched healthy control. The report also demonstrated the value of using
sonoelastography, a noninvasive ultrasound technique, to diagnose and monitor
the progress of DMD.
case study, titled “Sonoelastography of the trunk and lower extremity muscles
in a case of Duchenne muscular dystrophy,” was written by Stacey Cornelson, DC,
DACBR; Ashley Ruff, DC; Muriel Perillat, DC, MS,; and Norman Kettner, DC,
DACBR, FICC, professor and chair of the Department of Radiology.
is a rare genetic disorder that causes muscle weakness and reduced tone of the
core and lower extremities through replacement of muscle by fibrofatty tissue.
Sonoelastography ultrasound can be used to demonstrate changes in the muscle
mechanical properties due to fatty replacement and fibrosis. Thus far, the use
of ultrasound technology in diagnosing DMD patients has been limited. Muscle
biopsy is the standard for histologic diagnosis of DMD, but ultrasound may be a
noninvasive and more cost-effective approach to assess muscle changes and
response to treatment. A goal of this case report was to add to the growing
argument for this approach.
case study also demonstrated the value of chiropractic care for treating DMD
symptoms. The patient came to Dr. Perillat for palliative care of low back and
bilateral leg pain and headaches. Among other symptoms, a physical exam
revealed a mild waddling gait, bilateral pseudohypertrophy of the calf muscles
and abnormal spinal ranges of motion. The patient also required assistance to
climb a flight of stairs.
addition to sonoelastographic ultrasound to assess muscle stiffness and texture,
the patient underwent spinal mobilization, kinesiotaping of lower extremity
muscles and was also fitted for foot orthotics to ease the abnormal gait. The
patient reported pain reduction and some improvement in gait and required less
assistance to climb stairs.