Evidence map›Paper›PMID 34126981›Full record

ArticleBMC musculoskeletal disorders2021

Change in the postoperative intervertebral space height and its impact on clinical and radiological outcomes after ACDF surgery using a zero-profile device: a single-Centre retrospective study of 138 cases.

Haimiti Abudouaini, Chengyi Huang, Hao Liu, Ying Hong, Beiyu Wang, Chen Ding, Yang Meng, Tingkui Wu

Abstract read
In one paragraph

Article in BMC musculoskeletal disorders, 2021. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 13 papers, 1 of them a synthesis that pooled it.

0numbers the graph read from it
0cells of the map it votes in
13citing 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

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

  1. Effects of excessive distraction during anterior cervical spine surgery: a systematic review and meta-analysis of clinical outcomes, radiological changes, and complications.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
    Pooled it
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  7. Mechanical properties of an elastically deformable cervical spine implant.Journal of orthopaedic surgery and research · 2023
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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

8 authors.

Haimiti AbudouainiDepartment of Orthopedic Surgery, West China Hospital, Sichuan University, No. 37 Guo Xue Xiang Rd, Chengdu, 610041, Sichuan, China.
Chengyi HuangDepartment of Orthopedic Surgery, West China Hospital, Sichuan University, No. 37 Guo Xue Xiang Rd, Chengdu, 610041, Sichuan, China.
Hao LiuDepartment of Orthopedic Surgery, West China Hospital, Sichuan University, No. 37 Guo Xue Xiang Rd, Chengdu, 610041, Sichuan, China. liuhaospine@163.com.
Ying HongDepartment of Anesthesia and Operation Center / West China School of Nursing, West China Hospital, Sichuan University, No. 37 Guo Xue Xiang, Chengdu, 610041, Sichuan, China.
Beiyu WangDepartment of Orthopedic Surgery, West China Hospital, Sichuan University, No. 37 Guo Xue Xiang Rd, Chengdu, 610041, Sichuan, China.
Chen DingDepartment of Orthopedic Surgery, West China Hospital, Sichuan University, No. 37 Guo Xue Xiang Rd, Chengdu, 610041, Sichuan, China.
Yang MengDepartment of Orthopedic Surgery, West China Hospital, Sichuan University, No. 37 Guo Xue Xiang Rd, Chengdu, 610041, Sichuan, China.
Tingkui WuDepartment of Orthopedic Surgery, West China Hospital, Sichuan University, No. 37 Guo Xue Xiang Rd, Chengdu, 610041, Sichuan, China.

Funding

Department of Science and Technology of Sichuan Province 2018SZ0045Department of Science and Technology of Sichuan Province 2019YFQ0002Sichuan Province Science and Technology Support Program 2020YFS0084
6 · The paper itself

Abstract

backgroundThe effects of postoperative intervertebral height (IH) changes on the clinical and radiological outcomes after anterior cervical decompression and fusion (ACDF) surgery using a zero-profile device remain unclear.

methodsWe retrospectively reviewed patients who had undergone ACDF using a zero-profile device from March 2012 to February 2016 at our institution. Based on the postoperative IH variation, the patients were divided into group A with postoperative IH 0 to 2 mm, group B with postoperative IH 2 to 4 mm, and group C with postoperative IH greater than 4 mm. Clinical efficacy was evaluated using JOA, VAS, and NDI scores in the groups. Imaging parameters including the IH, cervical lordosis, fusion rate, intervertebral foramen (IVF) diameter and complications such as subsidence, dysphagia, and ASD were also compared across the three groups.

resultsThe average IH increased significantly from 6.72 mm preoperatively to 10.46 mm 1 week after surgery, and then gradually decreased to 7.48 mm at the final follow-up. The fusion rate was 61.90% in group A, 63.23% in group B, 53.57% in group C at 3 months, 73.81% in group A, 79.41% in group B, 67.86% in group C at 6 months, 90.48% in group A, 95.59% in group B, 92.86% in group C 1 year after surgery, and at the last follow-up, the fusion rate of three groups was all 100%. The IVF diameter was 6.52 ± 1.80 mm in group A, 9.55 ± 2.36 mm in group B, and 9.34 ± 1.62 mm in group C. ASD at the superior and inferior levels affected 11.90 and 16.67% patients in group A, 5.88 and 7.38% in group B, and 14.28 and 10.71% in group C. Regarding the 3 groups, the subsidence rates were 7.14, 4.41, and 14.29%, respectively.

conclusionsNo clear correlation was found between IH changes and clinical efficacy within a year of surgery. However, the IH may affect various complications after ACDF. If postoperative IH changes are maintained at 2 to 4 mm after a year, a satisfactory imaging parameters and relatively low complications may be achieved after ACDF surgery using a zero-profile device.

Indexed as

Intervertebral Disc DegenerationSpinal FusionCervical VertebraeDiskectomyFollow-Up StudiesHumansPain MeasurementRetrospective StudiesTreatment OutcomeAdjacent segment degenerationAnterior cervical decompression and fusionFusion rateIntervertebral heightZero-profile

Identifiers

PMID34126981
PMCPMC8204480

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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.