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Tagged: lumbar retrolisthesis
5 nonrib-bearing lumbar-shaped vertebral bodies are identified. Mild retrolisthesis of L4 on L5 and L5 on S1. Mild disc space narrowing at L4-5. No aggressive osseous lesions. No spondylolysis. Soft tissues are unremarkable. IMPRESSION: Mild retrolisthesis at L4-5 and L5-S1. Mild disc space narrowing
at L4-5.
A retrolisthesis is a backwards displacement of the vertebra above on the vertebra below. Normally, this occurs due to some degeneration of the disc between which then loses height. Since the facets act as “backwards ramps”, the vertebra above will slide back on the one below. A retrolisthesis can also occur if you have a large thoracic curve called a hyperkyphosis (see Scheuermann’s disorder) and the lumbar spine compensates but this event is much less common.
Dr. Corenman