Structural vibration testing of the lumbar spine: development of a diagnostic tool for assessment of segmental stiffness
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چکیده
Structural vibration testing is a measurement technique that is used in engineering to examine the condition of structures, such as bridges and airplanes. The basic idea behind structural vibration testing is that damage will alter the stiffness, mass or energy dissipation properties of a system, which in turn will change the dynamic response of the system when it is excited with a forcing function. Also damage of spinal structures is followed by alterations in stiffness, which might lead to spinal deformities and low-back pain. Yet, a specific diagnosis is made in only a small minority of patients, and this may be due to the lack of diagnostic tools to pinpoint the structures involved. Since structural vibration testing is non-destructive and requires only low forces and small deformations to detect changes in the mechanical properties it is considered a promising technique to study spinal mechanics.
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