Spondylolisthesis

By | March 29, 2015

A grade III anterolisthesis of L5 on S1.

A grade III anterolisthesis of L5 on S1.

Spondylolisthesis is a common condition seen here at Schlesinger Pain Centers where one vertebra slips either forward (anterolisthesis) or backward (retrolisthesis) with respect to the adjacent vertebra. The degree of slippage is usually graded, with a less than 25% slip being classified as Grade I, 25-50% being classified as Grade II, 50-75% being classified as Grade III and greater than 75% slippage being classified as Grade IV. Most small slips are asymptomatic. As the degree of displacement increases the patient may complain of mild aching in the low back without radiation. As the slip progresses neural structures become affected with compression of the nerve roots in the neural foramen usually preceding compression of the spinal cord or cauda equina.


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