Evidence map›Paper›PMID 40301551›Full record

ArticleScientific reports2025

Analysis of adverse sagittal alignment after anterior cervical discectomy and fusion (ACDF) for degenerative cervical myelopathy with local kyphosis.

Shaoqing Li, Tong Tong, Xiangping Peng, Yong Shen

Abstract read
In one paragraph

Article in Scientific reports, 2025. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 4 papers, 1 of them a synthesis that pooled it.

0numbers the graph read from it
0cells of the map it votes in
4citing papers in PubMed, 1 pooled it
–field-weighted citation impact
1 · What the graph read from it

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.

2 · The registry

The trial behind it

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Neither the registry nor the abstract names a trial number. If this is a trial report, that itself is worth knowing.

3 · Its place in the literature

Who cites it

4 citing papers in PubMed, 1 synthesis or guideline pooled it.

  1. Pooled it
  2. Article
  3. Surgical management of congenital C2 over C3 spondyloptosis with severe cervical kyphosis: two case reports.European spine journal : official publication of the European Spine Society, the European Spinal Deformity Society, and the European Section of the Cervical Spine Research Society · 2026
    Article
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4 · The record

Corrections and comments

PubMed lists nothing against this paper. Absence here is not a guarantee, only a check that was made.

5 · Who and what money

Authors and funding

4 authors.

Shaoqing LiDepartment of Orthopedic Surgery, Hebei Medical University Third Hospital, No. 139 Ziqiang Road, Shijiazhuang, 050051, China.
Tong TongDepartment of Orthopedic Surgery, Hebei Medical University Third Hospital, No. 139 Ziqiang Road, Shijiazhuang, 050051, China.
Xiangping PengDepartment of Orthopedic Surgery, The North China Medical Health Group Xingtai General Hospital, No. 202 BaYi Road, XingTai, 054000, China.
Yong ShenDepartment of Orthopedic Surgery, Hebei Medical University Third Hospital, No. 139 Ziqiang Road, Shijiazhuang, 050051, China. 35600337@hebmu.edu.cn.

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

The aim of this study was to identify relevant factors associated with sagittal malalignment, which refers to the loss of lordosis or recurrence of kyphosis following an anterior cervical approach. Degenerative cervical kyphosis has increasingly attracted clinical attention, but there are few studies about the classification of local kyphosis and risk factors of adverse sagittal alignment (ASA) after anterior surgery. The study retrospectively reviewed 82 patients with degenerative cervical myelopathy and local kyphosis who underwent anterior cervical discectomy and fusion (ACDF) between January 2019 and December 2021. The patients' baseline characteristics and postoperative assessments were reviewed using electronic medical records from a single-institution database. Based on the postoperative ASA, the patients were divided into the maintaining and adverse groups. Bivariate and multivariate statistical analyses were performed to predict related factors of the ASA. Comparing the two groups, advanced age (p = 0.019), the classification of local kyphosis (p = 0.001), and preoperative thoracic 1 (T1) slope angle (p < 0.001), C2-7 sagittal vertical axis (SVA) (p < 0.001), C2-7 range of motion (ROM) (p = 0.001), and postoperative adjacent segment degeneration (ASD) (p = 0.009), neck disability index (NDI) (p < 0.001), visual analogue score (VAS) (p < 0.001) were significantly different. Multiple linear regression analysis results for relevant factors of the change of local and C2-7 kyphosis showed classification of kyphosis (p = 0.007 and p = 0.563, respectively), T1 slope angle (p = 0.018 and p = 0.004, respectively), C2-7 SVA (p = 0.109 and p = 0.017, respectively), C2-7 ROM (p = 0.028 and p = 0.007, respectively). Our data suggest that postoperative ASA affects recovery of neck pain, and is related to preoperative T1 slope, C2-7 SVA, C2-7 ROM, and the classification of kyphosis.

Indexed as

Cervical VertebraeDiskectomyKyphosisSpinal Cord DiseasesSpinal FusionAdultAgedFemaleHumansLordosisMaleMiddle AgedPostoperative ComplicationsRange of Motion, ArticularRetrospective StudiesRisk FactorsAnterior approachDegenerative cervical myelopathyLocal kyphosisOutcome assessmentPostoperative pain

Identifiers

PMID40301551
PMCPMC12041251

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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.