George's Line is also known as the posterior vertebral alignment line and the posterior body line. George's Line is a measure of the integrity of the posterior vertebral body alignment.  The key landmark is the alignment of one vertebra to a superior and inferior vertebra. Normally, there is a smooth vertical alignment of each posterior body corner. Interruption of a smooth curve is suggestive of instability due to fracture, dislocation, ligamentous laxity or degenerative joint disease which can cause or aggravate spinal stenosis with resultant altered spinal biomechanics, and degenerative changes.

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