A member asked:

Grade1 anterolisthesis of l5 on s1, congenital anterior wedge deformities of t12 l1 present. bilateral l5 pars interarticularis defects. means what?

A doctor has provided 1 answer
Dr. Richard Zimon answered

Specializes in Internal Medicine

The tiny plates: which help stabilize the veterbrae one with another are missing at the 5th Lumbar Veertebral level causing a SLIPPAGE of the L-5 veterbrae on the sacrum (S1). this is associated with a smaller height of two of the veterbrae ABOVE the defect T-12 (the lowest chest (thoracic) veterbrae and the highest Lumbar (low back) veterbrae..... Hope this helps..difficult to explain without a "pointer" Z

Answered 9/8/2018

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Thank

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