ArticleJournal of Korean Neurosurgical Society2026
Impact of T1 Slope as a Predictor of Loss of Cervical Lordosis and Health-Related Quality of Life after Laminoplasty in Patients with Ossification of the Posterior Longitudinal Ligament : A Retrospective Cohort Study.
Article in Journal of Korean Neurosurgical Society, 2026. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 2 papers.
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Who cites it
2 citing papers in PubMed.
- C2 Slope as an Independent Predictor of Cervical Lordosis Loss Following Laminoplasty.Orthopaedic surgery · 2026Article
- Risk factors for cervical kyphotic deformity following laminoplasty in degenerative cervical myelopathy: A systematic review and meta-analysis.Journal of craniovertebral junction & spineReview
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Authors and funding
5 authors.
Funding
Abstract
objectiveThis study aimed to identify risk factors predicting the loss of cervical lordosis (LCL) in patients with multilevel ossification of the posterior longitudinal ligament (OPLL) after laminoplasty. Additionally, we evaluated the impact of these factors on health-related quality of life (HRQOL).
methodsWe retrospectively analyzed data from patients who underwent laminoplasty at Chonnam National University Hospital between January 2013 and December 2022. A range of radiological parameters and clinical outcome measures were collected perioperatively. Patients were divided into two groups based on the severity of LCL. We then evaluated preoperative radiological parameters associated with LCL and clinical outcomes, including HRQOL.
resultsA total of 110 patients (93 men and 17 women; mean age, 61.31±10.80 years) were included in the analysis. A higher T1 slope (T1S) (β=-0.412; p=0.004) and a lower extension ratio (β=0.107; p=0.006) were associated with an increased risk of LCL. T1S proved to be an excellent predictor of LCL, with a cutoff value of 28° (p<0.001; area under the curve, 0.918). Furthermore, T1S was the only factor significantly correlated with HRQOL after laminoplasty (r=-0.330; p<0.001).
conclusionT1S was significantly associated not only with LCL but also with HRQOL among patients with multilevel OPLL after laminoplasty. With a T1S cutoff of 28°, a T1S exceeding this threshold can be considered an important prognostic factor when planning laminoplasty in these patients.
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