ArticleNeurospine2025
Establishing Optimal L1 Pelvic Angle Targets to Minimize Both Proximal Junctional Kyphosis and Pelvic Nonresponse in Adult Spinal Deformity Surgery.
Article in Neurospine, 2025. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 1 paper.
What it found
Each row is one number read from the abstract, on the scale the paper reported it, with its interval. Left of the dashed line favours the treatment, right favours the comparator. Under each row is the sentence it came from. New to these charts? A ten-minute tutorial.
The abstract states no effect estimate the extractor could read, or names no intervention and outcome on the map, so this paper lights no cell and moves no belief. It is still indexed, cited and linked below.
The trial behind it
Trials whose registry record cites this paper, or whose number appears in the abstract. A trial that started after this paper was published is citing it as background, not reporting it.
Neither the registry nor the abstract names a trial number. If this is a trial report, that itself is worth knowing.
Who cites it
1 citing paper in PubMed.
- Effects of Knee Osteoarthritis on Compensatory Mechanisms Post-Spinal Deformity Correction.Journal of Korean Neurosurgical Society · 2026Article
Corrections and comments
PubMed lists nothing against this paper. Absence here is not a guarantee, only a check that was made.
Authors and funding
5 authors.
Funding
No grant is acknowledged in the PubMed record.
Abstract
objectiveTo determine the optimal targets of the L1 pelvic angle (L1PA) that minimize the risk of both proximal junctional kyphosis (PJK) and pelvic nonresponse (PNR) following adult spinal deformity (ASD) surgery.
methodsA retrospective study was conducted on 323 patients who underwent fusion surgery from the low thoracic spine (T9-12) to the pelvis and were followed up for 2 years. Risk factors for PJK and PNR were evaluated separately using multivariate logistic regression analysis. Receiver operating characteristic (ROC) curve analyses were performed to identify L1PA cutoff values predictive of PJK and PNR across 3 pelvic incidence (PI) categories: <45°, 45°-60°, and ≥60°. L1PA thresholds were defined to delineate "ideal" alignment.
resultsRisk factor analyses revealed that low L1PA was an independent risk factor for PJK (odds ratio [OR], 0.927; p=0.019), while high PI-LL (OR, 1.101; p<0.001) and high L1PA (OR, 1.249; p<0.001) were significant risk factors for PNR. On ROC curve analyses, optimal L1PA ranges were 2.5°-4.5° for PI<45°, 8.7°-12.6° for PI 45°-60°, and 15.1°-17.3° for PI≥60°. Patients within these ideal L1PA ranges had significantly lower rates of both PJK and PNR compared to those exceeding ideal L1PA ranges.
conclusionThis study demonstrated that optimal correction based on these L1PA targets reduced the risk of both PJK and PNR. Therefore, these L1PA targets can serve as reliable alignment goals to optimize surgical outcomes in ASD surgery.
Indexed as
Identifiers
What OpenQuestion holds
Registered trials
Read under generation 80e0d062 · epoch 390. Bibliography from PubMed, PubMed Central and OpenAlex; grants from NIH RePORTER; trial links from ClinicalTrials.gov; estimates, votes and beliefs from the OpenQuestion graph.