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Updated: Jun 30, 2026
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Multilevel Oblique Lumbar Interbody Fusion in Degenerative Lumbar Disc Disease with Instability
Published on: July 25, 2025
Lumbar fusion outcomes stratified by specific diagnostic indication
Steven D Glassman1, Leah Y Carreon, Mladen Djurasovic
1Department of Orthopaedic Surgery, University of Louisville School of Medicine, Louisville, KY 40202, USA. tallgeyer@spinemds.com
The Spine Journal : Official Journal of the North American Spine Society
|September 23, 2008
Summary
Lumbar fusion outcomes vary significantly by diagnosis, with spondylolisthesis and scoliosis showing the greatest improvement in Oswestry Disability Index (ODI) scores. Diagnostic specificity is crucial for improving evidence-based decision-making in spinal fusion surgery.
Area of Science:
- Spine surgery outcomes research
- Orthopedic surgery evidence-based practice
Background:
- Evaluating lumbar fusion effectiveness is challenging due to poorly defined diagnostic indications beyond spondylolisthesis.
- Diagnostic specificity is needed to translate outcomes data into clinical decision-making and evidence-based guidelines.
Purpose of the Study:
- To report prospectively collected clinical outcome measures after lumbar spine fusion, stratified by specific diagnoses.
- To assess the impact of diagnostic categorization on patient-reported outcomes.
Main Methods:
- Prospective collection of demographics, diagnoses, and outcome measures (ODI, SF-36, pain scales) from 327 patients undergoing decompression and posterolateral lumbar fusion.
- Patients were stratified by preoperative diagnosis (e.g., disc pathology, spondylolisthesis, stenosis, nonunion).
- Statistical analysis focused on mean change in outcome scores and the percentage of patients achieving minimum clinically important difference (MCID) at 1 and 2 years post-operation.
Main Results:
- Spondylolisthesis and scoliosis subgroups showed the most substantial improvement in Oswestry Disability Index (ODI) scores at 2 years.
- Patients with disc pathology and spondylolisthesis experienced the greatest improvement in SF-36 physical component scores.
- The percentage of patients reaching MCID varied significantly by diagnostic group, with higher rates for spondylolisthesis and lower rates for nonunion.
Conclusions:
- Diagnostic specificity is critical for building a stronger evidence base for lumbar fusion surgery.
- Health-Related Quality of Life (HRQOL) improvements and achievement of MCID thresholds are not uniform across diagnostic subgroups.
- Lack of diagnostic specificity beyond spondylolisthesis limits evidence-based decision-making in lumbar fusion.
