Evidence map›Paper›PMID 25850390›Full record

Trial reportEuropean spine journal : official publication of the European Spine Society, the European Spinal Deformity Society, and the European Section of the Cervical Spine Research Society2015

Anterior cervical interbody fusion with the Zero-P spacer: mid-term results of two-level fusion.

Yuanyuan Chen, Huajing Chen, Peng Cao, Wen Yuan

Abstract readClinical TrialComparative Study
PubMed Publisher
In one paragraph

Trial report in 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, 2015. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 19 papers, 3 of them syntheses that pooled it.

0numbers the graph read from it
0cells of the map it votes in
19citing papers in PubMed, 3 pooled it
3.0field-weighted citation impact, top 10% of its field
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

19 citing papers in PubMed, 3 syntheses or guidelines pooled it, 50 citations in OpenAlex.

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  8. Mechanical properties of an elastically deformable cervical spine implant.Journal of orthopaedic surgery and research · 2023
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  9. Outcomes of different zero-profile spacers in the treatment of two-level cervical degenerative disk disease.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 · 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

4 authors at 1 institution in 1 country.

Yuanyuan ChenOrthopaedics Department of Changzheng Hospital, Second Military Medical University, 415 Fengyang Rd, Shanghai, China.
Huajing Chen
Peng Cao
Wen Yuan
Second Military Medical University · CN

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

purposeOur aim was to compare the safety and efficacy of anterior cervical discectomy and fusion (ACDF) using the Zero-P spacer versus the plate method in patients with cervical spine spondylosis.

methodsClinical and radiologic data from 69 patients undergoing two-level ACDF from January 2009 to May 2011 were collected prospectively. The Zero-P spacer was implanted in 37 patients (group A) and the anterior cervical plate and interbody cage in 32 (group B). Patients were followed for at least 3 years after surgery. Clinical outcomes were analyzed using the Neck Disability Index and Japanese Orthopaedic Association (JOA) scoring. The thickness of the prevertebral soft tissue at the fused levels was measured on the lateral cervical spine radiographs and dysphagia was assessed using the Bazaz score. Fusion rate, change in cervical lordosis, and adjacent segment degeneration were analyzed.

resultsNeurologic outcomes were statistically equivalent between the two groups. The incidence of postoperative dysphagia was significantly lower in group A than in group B at 2 and 6 months (p < 0.05). At the final follow-up, there were no significant differences in the C2-C7 Cobb angles between the two groups (p > 0.05). Also, degenerative changes in adjacent segments occurred in five group A patients and seven group B patients (p = 0.361). There were no differences in fusion rate during the radiologic follow-up.

conclusionsClinical results with the Zero-P spacer used for two-level ACDF were satisfactory. The device is superior to the traditional plate for preventing postoperative dysphagia and avoiding possible complications associated with a plate. Prospective trials with more patients and longer follow-ups are required to confirm these observations.

Indexed as

AdultAgedBone PlatesCervical VertebraeDiskectomyFemaleFollow-Up StudiesHumansMaleMiddle AgedProspective StudiesSpinal FusionSpondylosisTreatment Outcome

Identifiers

PMID25850390
OpenAlexW1978141708

What OpenQuestion holds

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Registered trials

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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.