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Translaminar screw fixation in lumbar spine pathology. Technical note
1Department of Neurosurgery, University of Bern, Switzerland.
Acta Neurochirurgica
|January 1, 1989
Summary
This study presents two translaminar screw fixation techniques for spinal instability. These methods effectively decompress nerve roots and reconstruct spinal structures, aiding recovery from disc surgery and spondylolisthesis.
Area of Science:
- Orthopedic Surgery
- Neurosurgery
- Spinal Surgery
Background:
- Unstable lumbar and lumbosacral segments present complex surgical challenges.
- Degenerative spondylolisthesis and post-lumbar disc surgery instability require effective treatment strategies.
Purpose of the Study:
- To present two technical variations of translaminar screw fixation for spinal instability.
- To demonstrate the efficacy of these techniques in foraminal and intracanalicular decompression.
- To illustrate the reconstructive capabilities for spinal canal integrity.
Main Methods:
- Distraction-arthrodesis with intraarticular bone grafts for foramen enlargement and root decompression.
- Reconstruction of hemilamina following hemilaminectomy and facet reduction for spinal canal reconstitution.
Main Results:
- Successful enlargement of narrowed foramina and nerve root decompression.
- Effective repositioning and intracanalicular decompression in instability cases.
- Restoration of spinal canal integrity and direct treatment of intraforaminal pathology.
Conclusions:
- Translaminar screw fixation offers versatile solutions for lumbar and lumbosacral instability.
- The presented techniques provide definitive foraminal decompression and spinal canal reconstruction.
- These methods are valuable for managing complex cases including post-discectomy instability and degenerative spondylolisthesis.