What does retrolisthesis refer to?

Retrolisthesis specifically refers to the backward displacement of one vertebra relative to the vertebra below it. This condition can often be assessed through imaging studies and is important in understanding spinal alignment and stability. When one vertebra slips backward, it can potentially lead to spinal nerve impingement and other related spinal issues, causing pain and dysfunction. Recognizing this condition is crucial for proper diagnosis and treatment planning in physical therapy and orthopedic care.

In contrast, other conditions mentioned like forward displacement or degeneration of lumbar vertebrae have distinct terminology and implications. Forward displacement is known as anterolisthesis, while degenerative changes involve broader pathologies affecting the entire vertebral body rather than just positional relationships. Stability during movement is a general characteristic of healthy spinal mechanics but does not directly address the retrogressive positioning highlighted in this question.