{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2026,6,9]],"date-time":"2026-06-09T15:57:38Z","timestamp":1781020658419,"version":"3.54.1"},"reference-count":0,"publisher":"Indian Orthopaedic Research Group","issue":"6","content-domain":{"domain":[],"crossmark-restriction":false},"short-container-title":["Jocr"],"published-print":{"date-parts":[[2026]]},"abstract":"<jats:p>Introduction: Degenerative lumbar spondylolisthesis (DLS) is a common spinal disorder in the ageing population, characterised by the forward displacement of a vertebral body due to degenerative changes. Lumbar interbody fusion (LIF) is the standard surgical treatment, yet outcomes remain variable, with a significant proportion of patients experiencing unfavourable results. Identifying predictive factors influencing these outcomes is critical for improving surgical planning, patient selection, and post-operative care.\n\nMaterials and Methods: An observational cohort study included 52 patients aged 45\u201375 years diagnosed with single-level degenerative spondylolisthesis. Patients underwent LIF, and clinical outcomes were measured using the Visual Analogue Scale (VAS) and Oswestry Disability Index (ODI). Radiological parameters, including facet angle (FA), disc height (DH), and lateral listhesis (LLS), were assessed preoperatively and postoperatively. Logistic regression and multivariate analysis were conducted to evaluate predictors of unfavourable outcomes, with significance set at P &lt; 0.05.\n\nResults: FA (P = 0.039), LLS (P = 0.021), and DH (P = 0.032) were significant pre-operative predictors of unfavourable outcomes. Patients with inadequate postoperative DH restoration exhibited slower recovery, while sustained DH (P = 0.012) was critical for long-term success. Favourable outcomes demonstrated significant reductions in VAS (7.0 to 2.5) and ODI (28 to 8) scores at 6 months compared to the unfavourable cohort.\n\nConclusion: FA, LLS, and DH are pivotal predictors of clinical outcomes in LIF for DLS. Monitoring these parameters enables personalised surgical planning and improved patient outcomes. Future studies should validate these findings in multicentre settings and explore machine learning for enhanced predictive modelling.\n\nKeywords: Degenerative lumbar spondylolisthesis, lumbar interbody fusion, Oswestry Disability Index, facet angle, lateral listhesis.<\/jats:p>","DOI":"10.13107\/jocr.2026.v16.i06.7388","type":"journal-article","created":{"date-parts":[[2026,6,9]],"date-time":"2026-06-09T15:13:16Z","timestamp":1781017996000},"page":"77-83","source":"Crossref","is-referenced-by-count":0,"title":["Predictive Factors for Unfavorable Outcomes in Degenerative Lumbar Spondylolisthesis Surgery"],"prefix":"10.13107","volume":"16","author":[{"given":"Karthik","family":"Devaraj","sequence":"first","affiliation":[{"name":"Department of Orthopaedics, ESIC Medical College and Hospital, Chennai, Tamil Nadu, India."}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Vignesh","family":"Veluswamy","sequence":"additional","affiliation":[{"name":"Department of Orthopaedics, ESIC Medical College and Hospital, Chennai, Tamil Nadu, India."}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"N S","family":"Rajarajan","sequence":"additional","affiliation":[{"name":"Department of Orthopaedics, ESIC Medical College and Hospital, Chennai, Tamil Nadu, India."}],"role":[{"vocabulary":"crossref","role":"author"}]}],"member":"5271","published-online":{"date-parts":[[2026]]},"container-title":["Journal of Orthopaedic Case Reports"],"original-title":[],"deposited":{"date-parts":[[2026,6,9]],"date-time":"2026-06-09T15:13:18Z","timestamp":1781017998000},"score":1,"resource":{"primary":{"URL":"https:\/\/jocr.co.in\/wp\/2026\/06\/predictive-factors-for-unfavorable-outcomes-in-degenerative-lumbar-spondylolisthesis-surgery\/"}},"subtitle":[],"short-title":[],"issued":{"date-parts":[[2026]]},"references-count":0,"journal-issue":{"issue":"6","published-online":{"date-parts":[[2026]]},"published-print":{"date-parts":[[2026]]}},"URL":"https:\/\/doi.org\/10.13107\/jocr.2026.v16.i06.7388","relation":{},"ISSN":["2321-3817"],"issn-type":[{"value":"2321-3817","type":"electronic"}],"subject":[],"published":{"date-parts":[[2026]]}}}