Laminotomy
Laminotomy - Related Videos
09:00
Laminotomy for Lumbar Dorsal Root Ganglion Access and Injection in Swine
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Cited by 7 •
2017
We describe a method for laminotomy in swine that provides access to lumbar dorsal root ganglia (DRG) for intraganglionic injection. Injection progress is monitored intraoperatively and histologically confirmed up to 21 days after surgery. This protocol could be used for future preclinical studies involving DRG injection.
05:05
Laminotomy for Targeted Injection into the Lumbar Dorsal Root Ganglion in a Pig Model
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2025
Source: Unger, M. D., et al., Laminotomy for Lumbar Dorsal Root Ganglion Access and Injection in Swine. J. Vis. Exp. (2017)This video demonstrates a laminotomy procedure in an anesthetized pig to access the lumbar dorsal root ganglion for targeted neurotherapeutic delivery using convection-enhanced delivery.
05:37
Cone Beam Intraoperative Computed Tomography-based Image Guidance for Minimally Invasive Transforaminal Interbody Fusion
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Cited by 10 •
2019
The purpose of this article is to provide image-guidance for minimally invasive transforaminal interbody fusion.
05:17
Percutaneous Endoscopic Unilateral-Approach Bilateral Decompression for Lumbar Spinal Stenosis
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Cited by 5 •
2024
The present protocol describes the steps and key points of lumbar endoscopic unilateral laminotomy for bilateral decompression for the treatment of degenerative lumbar spinal stenosis.
11:05
Uniportal Endoscopic Techniques for Lumbar Decompression: Interlaminar Microdiscectomy, Interlaminar Laminectomy, and Transforaminal Microdiscectomy
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2026
Here, we present three uniportal endoscopic protocols for lumbar decompression. These techniques include interlaminar microdiscectomy, interlaminar laminectomy, and transforaminal microdiscectomy.
FAQs
Compared with a laminectomy, laminotomy removes only a portion of the lamina rather than the entire bony plate. This more limited bony removal creates a targeted route into the spinal canal while preserving more posterior bone. The distinction matters when decompression or canal access is needed without removing as much of the lamina.
Laminotomy relieves compression by removing the portion of lamina that contributes to restricted space around the spinal canal. This creates a focused opening through which pressure-producing tissue can be addressed when present, including a ligament or herniated disc material. The intended result is reduced pressure on the spinal cord or nerve roots.
The lamina is not always the only structure involved in compression. When necessary, the surgeon may remove additional ligament tissue or herniated disc material through the opening. Addressing these contributors can extend decompression beyond bone removal alone and may be relevant when stenosis, nerve compression, or another space-occupying lesion narrows the spinal canal.
A laminotomy procedure centers on creating a targeted opening in the lamina, followed by decompression of the spinal canal or affected nerve roots. If additional material contributes to narrowing, the surgeon may remove ligament or herniated disc material as needed. This focused approach also provides access for procedures involving structures within the spinal canal.
Clinicians may consider laminotomy for selected cases of spinal stenosis, nerve compression, or other space-occupying lesions affecting the spinal canal. The procedure is relevant when the treatment goal is to relieve pressure on the spinal cord or nerve roots while using a more targeted opening than the broader removal associated with laminectomy.
By relieving pressure, laminotomy may help reduce pain, numbness, and weakness associated with spinal cord or nerve-root compression. Beyond symptom treatment, the opening can provide surgical access to procedures involving the spinal canal. These outcomes reflect the procedure’s dual role as a decompression technique and a route to address selected canal lesions.