Evidence map›Paper›PMID 29222937›Full record

ArticleMedical science monitor : international medical journal of experimental and clinical research2017

Preoperative T1 Slope as a Predictor of Change in Cervical Alignment and Range of Motion After Cervical Disc Arthroplasty.

Jianhui Zhao, Rui Jiang, Yuhui Yang, Rui Gu, Zhongli Gao, Jianlin Xiao, Shangjun Chen, Modi Yang

Abstract read
In one paragraph

Article in Medical science monitor : international medical journal of experimental and clinical research, 2017. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 1 paper.

0numbers the graph read from it
0cells of the map it votes in
1citing papers in PubMed
–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

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.

3 · Its place in the literature

Who cites it

1 citing paper in PubMed.

  1. Article
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

8 authors.

Jianhui ZhaoDepartment of Orthopaedics, China-Japan Union Hospital of Jilin University, Changchun, Jilin, China (mainland).
Rui JiangDepartment of Orthopaedics, China-Japan Union Hospital of Jilin University, Changchun, Jilin, China (mainland).
Yuhui YangDepartment of Orthopaedics, China-Japan Union Hospital of Jilin University, Changchun, Jilin, China (mainland).
Rui GuDepartment of Orthopaedics, China-Japan Union Hospital of Jilin University, Changchun, Jilin, China (mainland).
Zhongli GaoDepartment of Orthopaedics, China-Japan Union Hospital of Jilin University, Changchun, Jilin, China (mainland).
Jianlin XiaoDepartment of Orthopaedics, China-Japan Union Hospital of Jilin University, Changchun, Jilin, China (mainland).
Shangjun ChenNorman Bethune Medical School, Jilin University, Changchun, Jilin, China (mainland).
Modi YangDepartment of Orthopaedics, China-Japan Union Hospital of Jilin University, Changchun, Jilin, China (mainland).

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

BACKGROUND This study analyzed the effect of preoperative T1 slope on cervical alignment and range of motion (ROM) after cervical disc arthroplasty (CDA) in patients with cervical degenerative disease. MATERIAL AND METHODS This retrospective study included 32 patients with single-level symptomatic cervical disc disease who underwent CDA with the Mobi-C cervical disc prosthesis and had a mean follow-up of 26.8±6.4 months. Standing lateral, flexion, and extension X-rays of the cervical spine were obtained preoperatively and postoperatively at 24-month follow-up. Simple linear regression analysis was used to assess the impact of preoperative T1 slope on changes from preoperative values in radiologic parameters. RESULTS Compared to preoperative values, at 24-month follow-up, there was a significant increase in mean functional spinal unit (FSU) angle (+7.4°), upper adjacent segment (UAS) angle (+3.1°), and overall cervical alignment (C2-C7 angle) (+6.3°), and a significant decrease in mean lower adjacent segment (LAS) angle (-2.4°). Mean ROM of the FSU (-3.6°), LAS (-3.0°), and overall cervical spine (-11.5°) significantly decreased, and mean ROM of the UAS (+1.6°) significantly increased. There were significant correlations between preoperative T1 slope and mean change from preoperative value in FSU angle, C2-C7 angle, and ROM of the overall cervical spine (C2-C7). CONCLUSIONS T1 slope is useful for evaluating changes in the FSU angle, C2-C7 angle, and ROM of the overall cervical spine following CDA with the Mobi-C disc. Patients with a large preoperative T1 slope may be good candidates for CDA with the Mobi-C prosthesis due its motion maintenance and the fact that it has little adverse impact on sagittal alignment. It also could be a good option in terms of sagittal alignment improvement or motion maintenance for patients with kyphosis.

Indexed as

AdultArthroplastyCervical VertebraeFemaleHumansIntervertebral DiscIntervertebral Disc DegenerationIntervertebral Disc DisplacementKyphosisMaleMiddle AgedNeckRadiographyRange of Motion, ArticularRetrospective Studies

Identifiers

PMID29222937
PMCPMC5732433

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