{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2026,7,30]],"date-time":"2026-07-30T20:47:06Z","timestamp":1785444426702,"version":"3.56.0"},"reference-count":35,"publisher":"The Korean Spinal Neurosurgery Society","issue":"2","license":[{"start":{"date-parts":[[2025,6,30]],"date-time":"2025-06-30T00:00:00Z","timestamp":1751241600000},"content-version":"tdm","delay-in-days":0,"URL":"http:\/\/creativecommons.org\/licenses\/by-nc\/4.0\/"}],"funder":[{"name":"Shandong Province-Young Taishan Scholars","award":["tsqn202408347"],"award-info":[{"award-number":["tsqn202408347"]}]},{"name":"Shandong Provincial Natural Science Fund for Excellent Young Scientist Fund Program","award":["2025HWYQ017"],"award-info":[{"award-number":["2025HWYQ017"]}]},{"DOI":"10.13039\/501100007129","name":"Shandong Provincial Natural Science Foundation","doi-asserted-by":"crossref","award":["ZR2024QH573"],"award-info":[{"award-number":["ZR2024QH573"]}],"id":[{"id":"10.13039\/501100007129","id-type":"DOI","asserted-by":"crossref"}]},{"name":"National Institute for Health and Social Care"},{"DOI":"10.13039\/100014653","name":"Manchester Biomedical Research Centre","doi-asserted-by":"publisher","award":["NIHR203308"],"award-info":[{"award-number":["NIHR203308"]}],"id":[{"id":"10.13039\/100014653","id-type":"DOI","asserted-by":"publisher"}]},{"DOI":"10.13039\/501100007129","name":"Natural Science Foundation of Shandong Province","doi-asserted-by":"publisher","award":["ZR2024ZD23"],"award-info":[{"award-number":["ZR2024ZD23"]}],"id":[{"id":"10.13039\/501100007129","id-type":"DOI","asserted-by":"publisher"}]},{"name":"Development Fund of Advanced Medical Research Institute"},{"DOI":"10.13039\/100009108","name":"Shandong University","doi-asserted-by":"publisher","id":[{"id":"10.13039\/100009108","id-type":"DOI","asserted-by":"publisher"}]},{"name":"Shandong Province-Pandeng Taishan Scholars","award":["tspd20210320"],"award-info":[{"award-number":["tspd20210320"]}]}],"content-domain":{"domain":["e-neurospine.org"],"crossmark-restriction":true},"short-container-title":["Neurospine"],"published-print":{"date-parts":[[2025,6,30]]},"abstract":"<jats:p>Objective: This study aimed to determine the rates, causes, and predictive factors of readmissions at different periods following spine surgery, up to 180 days.Methods: This study utilized data from the 2018 to 2019 Nationwide Readmissions Database and included four postoperative periods: 0 to 7 days, 8 to 30 days, 31 to 90 days, and 91 to 180 days. The causes of readmissions and potential predictive factors were systematically identified. All analyses were performed for each period.Results: For the 180,281 patients (mean age, 65.4 years) included, 2.4% were readmitted between 0 and 7 days, 3.5% between 8 and 30 days, 3.7% between 31 and 90 days, and 4.3% between 91 and 180 days (cumulative rates: 2.4%, 5.9%, 9.3%, and 12.1%, respectively). The causes of readmissions varied across different periods: surgical site-related causes predominated within the first 30 days, whereas nonsurgical site-related causes were more prevalent from 31 to 180 days; other surgical care complication (e.g., infection) was the most prevalent cause between 0 and 7 days (10.7%) and between 8 and 30 days (29.2%), while spondylopathies\/spondyloarthropathy (e.g., spinal stenosis) were the leading causes between 31 and 90 days (12.6%) and between 91 and 180 days (17.5%). The predictive factors associated with readmissions also varied across different periods. For example, patients who underwent fusion was associated with a decreased risk of readmissions between 31 and 180 days (e.g., between 91 and 180 days: odds ratio [OR], 0.79; 95% confidence interval [CI], 0.72\u20130.86; p&lt;0.001), rather than between 0 and 30 days (e.g., between 0 and 7 days: OR, 0.99; 95% CI, 0.90\u20131.08; p=0.81).Conclusion: About 6% of patients with lumbar spinal stenosis who underwent spine surgery were readmitted within 30 days and 12% by 180 days. The causes of readmissions and predictive factors varied by period, providing valuable insights for quality improvement efforts and the burden of readmission reductions.<\/jats:p>","DOI":"10.14245\/ns.2449316.658","type":"journal-article","created":{"date-parts":[[2025,6,29]],"date-time":"2025-06-29T21:32:42Z","timestamp":1751232762000},"page":"523-539","update-policy":"https:\/\/doi.org\/10.14245\/crossmark_policy","source":"Crossref","is-referenced-by-count":3,"title":["Rates, Causes, and Predictive Factors of Hospital Readmissions After Spine Surgery for Lumbar Spinal Stenosis: A Nationwide Retrospective Cohort 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