The Orthobullets Podcast Spine | Adult Isthmic Spondylolisthesis
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Jun 2, 2025 Dive into the complexities of adult isthmic spondylolisthesis! Discover its definition, prevalence, and common symptoms that affect many. Gain insights into effective diagnostic methods and explore a range of treatment options tailored to individual needs. The discussion emphasizes the necessity of personalized surgical techniques for optimal outcomes, giving listeners a deeper understanding of this spine condition.
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Cause and Location of Disease
- Adult isthmic spondylolisthesis is caused by a pars interarticularis defect leading to vertebral body subluxation.
- Most cases occur at L5-S1 due to high lumbar forces and facet orientation.
Pathophysiology of Symptoms
- Radicular symptoms arise from L5 nerve root compression in L5-S1 foramen.
- Compression sources include fibrous repair tissue, bony spurs, and disc bulging; central stenosis is rare.
Classification Systems Explained
- The Wiltsy-Newman classification divides isthmic spondylolisthesis into five types based on etiology.
- The Myerdan classification grades slips by percentage of vertebral translation.