Related Experiment Video
Updated: Nov 22, 2025
Multilevel Oblique Lumbar Interbody Fusion in Degenerative Lumbar Disc Disease with Instability
Published on: July 25, 2025
Failures of lumbosacral instrumented fusions addressing degenerative lumbar disease
Ahmed Helal1, Amr Madkour1, Ahmed Yehia1
1Department of Neurosurgery, Faculty of Medicine, Alexandria University, Azarita, Alexandria, Egypt.
Background:
Here, we evaluated the failure to preserve or restore adequate spinopelvic alignment following lumbosacral instrumented fusions for degenerative disease.
Methods:
Patients undergoing lumbosacral instrumented fusions for degenerative spine disease underwent; standing lumbopelvic X-rays and lumbar MRI scans obtained both preoperatively and 1 year postoperatively. Parameters measured included lumbar lordosis (LL), L4-S1 angle, pelvic incidence (PI), and LL-PI mismatch.
Results:
Fifty patients were followed for 1 year following lumbopelvic fusion. There was a statistically significant difference in the L4-S1 angle between patients with good versus poor clinical outcomes at 1 year postoperative; the LL-PI mismatch showed a strong positive correlation with better outcome scores.
Conclusion:
Preservation of an adequate LL/other lumbosacral parameters favorably impacts patients' outcomes following lumbosacral fusion for degenerative disease.
