functional spinal unit

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functional spinal unit (FSU),

n the smallest possible representation of the spine that can demonstrate the biomechanical characteristics of the spine. Made up of the intervertebral disc, two vertebrae, and the interconnect-ing ligaments.
References in periodicals archive ?
Simulated influence of osteoporosis and disc degeneration on the load transfer in a lumbar functional spinal unit, Journal of Biomechanics, 37, 1061-1069 (2004).
The geometry of the various functional spinal units is generated from serial axial tomography scan (CT) [25], [1], [37].
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