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Degenerative lumbar spinal stenosis. Decompression with and without arthrodesis
Summary
Decompression surgery for lumbar spinal stenosis improved walking distance in all patient groups. No significant differences in pain relief were found between decompression alone versus decompression with spinal fusion.
Area of Science:
- Neurosurgery
- Orthopedic Surgery
- Spinal Surgery
Background:
- Lumbar spinal stenosis (LSS) is a common condition causing neurogenic claudication.
- Surgical options for LSS include decompression alone or with spinal fusion (arthrodesis).
- The optimal surgical approach for LSS without instability remains debated.
Purpose of the Study:
- To prospectively evaluate and compare the outcomes of spinal decompression with and without arthrodesis for treating lumbar spinal stenosis without instability.
Main Methods:
- Forty-five patients with lumbar spinal stenosis without instability were randomly assigned to three groups.
- Group I: Decompression with laminotomy and medial facetectomy.
- Group II: Decompression with arthrodesis of the most stenotic segment.
- Group III: Decompression with arthrodesis of all decompressed segments.
Main Results:
- All three surgical groups demonstrated significant improvement in walking distance post-operatively.
- No statistically significant differences in pain relief were observed among the three groups.
- Follow-up averaged 28 months, with all operations performed by a single surgeon.
Conclusions:
- Spinal decompression, with or without arthrodesis, effectively improves walking ability in patients with lumbar spinal stenosis.
- The addition of spinal arthrodesis to decompression does not appear to offer superior pain relief compared to decompression alone for this patient population.