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Indication and Contraindication of Endoscopic Transforaminal Lumbar Decompression.
Kai-Uwe Lewandrowski1, Álvaro Dowling2, Paulo Sérgio Teixeira de Carvalho3
1Center for Advanced Spine Care of Southern Arizona and Surgical Institute of Tucson, Tucson, Arizona, USA and Visiting Professor, Department Neurosurgery, UNIRIO, Rio de Janeiro, Brazil.
World Neurosurgery
|March 24, 2020
Summary
This study analyzed endoscopic transforaminal decompression for lumbar spinal stenosis. Results show varying durability based on stenosis type, guiding surgical approach selection for better patient outcomes.
Area of Science:
- Neurosurgery
- Spinal Surgery
- Minimally Invasive Procedures
Background:
- Indications and contraindications for endoscopic transforaminal approach in lumbar spinal stenosis are not well-defined.
- Lumbar spinal stenosis presents in various types, impacting treatment strategies.
Purpose of the Study:
- To evaluate the durability and clinical outcomes of endoscopic transforaminal decompression for different types of lumbar spinal stenosis.
- To provide data to guide the selection of surgical approaches for lumbar spinal stenosis.
Main Methods:
- A Kaplan-Meier durability survival analysis was performed on 304 patients with lumbar spinal stenosis (Types I-IV).
- Patients were assessed using the Oswestry Disability Index, visual analog scale, and modified Macnab criteria.
- Follow-up averaged 45.3 years.
Main Results:
- Excellent or good outcomes were achieved in 87.5% of patients.
- Durability varied significantly by stenosis type: Type IV (extraforaminal) showed the longest median survival (66 months), followed by Type II (lateral recess) (53 months), Type III (foraminal) (32 months), and Type I (central canal) (28 months).
- Statistically significant differences (P < 0.0001) in durability were observed between stenosis types.
Conclusions:
- Patient stratification based on stenosis type and surgeon expertise is recommended for preoperative planning.
- Complex central or foraminal stenotic lesions may benefit from consideration of alternative endoscopic approaches.
- Endoscopic transforaminal decompression offers variable durability depending on the specific type of lumbar spinal stenosis.
