Related Experiment Video
Updated: Jun 20, 2026
04:19
Minimally Invasive Treatment for Thoracolumbar Burst Fracture Using Sagittal Alignment Screws and A Trauma Reduction Device
Published on: November 8, 2024
Unilateral augmented pedicle screw fixation for foraminal stenosis
Jeong-Gyun Kim1, Yong-Jun Jin, Sang Ki Chung
1Department of Neurosurgery, Seoul National University Hospital, Seoul, Korea.
Journal of Korean Neurosurgical Society
|August 27, 2009
Summary
Unilateral decompression with pedicle screw fixation effectively treats symptomatic foraminal stenosis, improving pain and function. This surgical approach offers reduced invasiveness and a high success rate for patients.
Area of Science:
- Neurosurgery
- Orthopedic Surgery
- Spinal Surgery
Background:
- Unilateral symptomatic foraminal stenosis can cause significant low back pain and functional impairment.
- Surgical intervention aims to decompress neural elements and stabilize the spine.
Purpose of the Study:
- To evaluate the efficacy of unilateral decompression combined with pedicle screw fixation for treating unilateral symptomatic foraminal stenosis.
- To assess clinical outcomes and surgical success rates using validated scoring systems.
Main Methods:
- A cohort of 16 patients with unilateral symptomatic foraminal stenosis underwent unilateral decompression and bone cement augmented pedicle screw fixation.
- Patient outcomes were assessed using the Visual Analog Scale (VAS) for pain and the Japanese Orthopedic Association (JOA) scoring system.
- Surgical results were classified using McNab's criteria, with excellent or good outcomes considered successful.
Main Results:
- Significant improvements were observed in both VAS and JOA scores post-surgery (p < 0.05).
- The average VAS score decreased from 7.8 to 2.2, and the average JOA score increased from 5.8 to 12.3.
- The overall success rate was 87.5%, with no revision surgeries, metal failures, or pseudoarthrosis reported.
Conclusions:
- Unilateral decompression and pedicle screw fixation provide a safe and effective treatment for unilateral symptomatic foraminal stenosis.
- This technique offers potential advantages such as shorter operation time and reduced surgical extent.
- Pedicle screw augmentation and interbody fusion effectively compensate for any reduced stiffness associated with unilateral fixation.
