Type III Degenerative Spondylolisthesis is most commonly located at which level?

Prepare for the Neuromusculoskeletal II Lecture Exam with detailed study guides, flashcards, and multiple choice questions. Unlock comprehensive insights and enhance your knowledge for success.

Multiple Choice

Type III Degenerative Spondylolisthesis is most commonly located at which level?

Degenerative spondylolisthesis arises when the disc and facet joints degenerate and the segment becomes unstable, allowing forward slippage of one vertebra over the one below. The lower lumbar region, especially the L4–L5 segment, bears the greatest combination of mobility and mechanical load, producing more shear at this level as degeneration progresses. That makes L4–L5 the most common site for Type III degenerative spondylolisthesis. Levels higher up are less prone to this specific degenerative pattern, and while L5–S1 can slip, it occurs less frequently than at L4–L5.

Degenerative spondylolisthesis arises when the disc and facet joints degenerate and the segment becomes unstable, allowing forward slippage of one vertebra over the one below. The lower lumbar region, especially the L4–L5 segment, bears the greatest combination of mobility and mechanical load, producing more shear at this level as degeneration progresses. That makes L4–L5 the most common site for Type III degenerative spondylolisthesis. Levels higher up are less prone to this specific degenerative pattern, and while L5–S1 can slip, it occurs less frequently than at L4–L5.

More practice questions