In spinal stenosis, which movement commonly worsens symptoms due to extension?

In spinal stenosis, which movement commonly worsens symptoms due to extension?

• A. Lifting or Twisting
• B. Flexion
• C. Extension
• D. Sitting

Answer: (C)

In spinal stenosis, extending the spine worsens symptoms because it narrows the already compressed spinal canal. When you extend the lumbar spine, the posterior elements crowd the canal further: the facet joints approximate, the ligamentum flavum buckles into the canal, and any disc bulge or osteophytes encroach on the thecal sac and nerve roots. This increases neural compression and neurogenic claudication, especially with standing or walking. Relief is usually felt with flexion, which opens the canal. Leaning forward or sitting in a flexed posture increases space for the nerves, easing pain and extending walking distance. So the movement that commonly worsens symptoms is extension. Flexion or sitting helps by reducing compression. Lifting or twisting may affect symptoms but the hallmark pattern centers on extension worsening and flexion relief.

In spinal stenosis, extending the spine worsens symptoms because it narrows the already compressed spinal canal. When you extend the lumbar spine, the posterior elements crowd the canal further: the facet joints approximate, the ligamentum flavum buckles into the canal, and any disc bulge or osteophytes encroach on the thecal sac and nerve roots. This increases neural compression and neurogenic claudication, especially with standing or walking.

Relief is usually felt with flexion, which opens the canal. Leaning forward or sitting in a flexed posture increases space for the nerves, easing pain and extending walking distance.

So the movement that commonly worsens symptoms is extension. Flexion or sitting helps by reducing compression. Lifting or twisting may affect symptoms but the hallmark pattern centers on extension worsening and flexion relief.