ArticleGlobal spine journal2026
Comparative Outcomes of Single-Level Lumbar Laminectomy versus Hemilaminectomy: A Retrospective TriNetX Analysis.
Article in Global spine journal, 2026. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Not yet cited in PubMed.
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Abstract
Study DesignRetrospective Cohort Study.ObjectivesTo compare 1-year postoperative outcomes and complication rates between single-level lumbar laminectomy and hemilaminectomy using a large, multicenter, propensity-matched dataset.MethodsWe queried the TriNetX global health research network (≥160 million patients) for adults undergoing single-level lumbar decompression between January 2005 and July 2025. Cohorts were defined by CPT codes: laminectomy and hemilaminectomy, with qualifying diagnoses of lumbar disc herniation, spinal stenosis, spondylolisthesis, or radiculopathy. Patients with fusion, prior lumbar surgery, or non-degenerative pathology were excluded. Outcomes included new postoperative events within 1 year: mortality, weakness, pain, sensory loss, cauda equina syndrome, radiculopathy, foot drop, CSF leak, and surgical-site infection. Propensity-score matching balanced demographics and comorbidities. Cox proportional hazards models, Kaplan-Meier curves, and relative risks were calculated.ResultsOf 167,177 patients, 80,440 underwent laminectomy and 86,737 hemilaminectomy. After matching, 50,853 patients per cohort were analyzed. One-year mortality was similar (0.57% vs 0.49%, HR 1.20; 95% CI 1.01-1.42;
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