Evidence map›Paper›PMID 42183875›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 Society2026

Clinical efficacy and safety analysis of the "Pre-set screw path technique" in cervical posterior single door laminoplasty with supportive titanium plate fixation: a prospective randomized controlled study.

Pengcheng Mao, Donghui Cao, Xusheng Li, Xi Zhu, Xiao Zhang, Wengbo Gu, Yu Yang, Yanrong Tian, Haifeng Yuan

Abstract readRandomized Controlled Trial
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, 2026. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Not yet cited in PubMed.

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

0 citing papers in PubMed.

No citing paper in PubMed yet.

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

9 authors.

Pengcheng MaoNingxia Medical University, No. 1160 Shengli Street, Xingqing District, Yinchuan 750004, Ningxia Hui Autonomous Region, P.R. China, Ningxia Medical University, Yinchuan, China.
Donghui CaoNingxia Medical University, No. 1160 Shengli Street, Xingqing District, Yinchuan 750004, Ningxia Hui Autonomous Region, P.R. China, Ningxia Medical University, Yinchuan, China.
Xusheng LiGeneral Hospital of Ningxia Medical University, No. 804 Shengli Street, Xingqing District, Yinchuan 750004, Ningxia Hui Autonomous Region, P.R. China, Ningxia Medical University General Hospital, Yinchuan，Ningxia, China.
Xi ZhuGeneral Hospital of Ningxia Medical University, No. 804 Shengli Street, Xingqing District, Yinchuan 750004, Ningxia Hui Autonomous Region, P.R. China, Ningxia Medical University General Hospital, Yinchuan，Ningxia, China.
Xiao ZhangNingxia Medical University, No. 1160 Shengli Street, Xingqing District, Yinchuan 750004, Ningxia Hui Autonomous Region, P.R. China, Ningxia Medical University, Yinchuan, China.
Wengbo GuNingxia Medical University, No. 1160 Shengli Street, Xingqing District, Yinchuan 750004, Ningxia Hui Autonomous Region, P.R. China, Ningxia Medical University, Yinchuan, China.
Yu YangNingxia Medical University, No. 1160 Shengli Street, Xingqing District, Yinchuan 750004, Ningxia Hui Autonomous Region, P.R. China, Ningxia Medical University, Yinchuan, China.
Yanrong TianNingxia Medical University, No. 1160 Shengli Street, Xingqing District, Yinchuan 750004, Ningxia Hui Autonomous Region, P.R. China, Ningxia Medical University, Yinchuan, China.
Haifeng YuanGeneral Hospital of Ningxia Medical University, No. 804 Shengli Street, Xingqing District, Yinchuan 750004, Ningxia Hui Autonomous Region, P.R. China, Ningxia Medical University General Hospital, Yinchuan，Ningxia, China. yuan18709571510@163.com.

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

objectiveTo evaluate the clinical efficacy and safety of a "Pre-set Screw Path Technique (PSPT)" compared with the traditional drilling method in cervical posterior open-door laminoplasty with titanium plate fixation.

methodsIn this prospective randomized controlled trial, 113 patients with multilevel cervical spondylotic myelopathy undergoing C3-C7 laminoplasty (February 2019-February 2023) were allocated to either the control group (n = 58, traditional drilling) or the experimental group (n = 55, pre-set screw path technique). The primary outcome was the incidence of intraoperative spinal cord or nerve root injury related to drilling. Secondary outcomes included operative duration, intraoperative blood loss, neurological recovery [Japanese Orthopaedic Association (JOA) score and improvement rate at 1 week, 3, 6, and 12 months], cervical range of motion (ROM), axial symptoms, and other complications (screw loosening, dural tear, C5 palsy, etc.).

resultsFor the primary endpoint, no spinal cord or nerve root injury occurred in the experimental group (0/55), while one transient nerve root irritation was observed in the control group (1/58, 1.72%); the difference was not statistically significant (P = 0.328). Secondary outcomes showed that the experimental group had significantly shorter operative time (86.07 ± 21.97 vs. 106.29 ± 47.56 min, P < 0.05), reduced blood loss (111.09 ± 35.21 vs. 168.19 ± 97.35 ml, P < 0.001), lower incidence of axial symptoms (9.1% vs. 25.9%, P = 0.020), and lower screw loosening rate (0% vs. 6.90%, P = 0.047). Neurological recovery [Japanese Orthopaedic Association (JOA) score and improvement rate] and cervical range of motion (ROM) were comparable between groups at all follow-up points (P > 0.05).

conclusionThe "Pre-set Screw Path Technique (PSPT)" reduces operative time and blood loss, lowers the risks of axial symptoms and screw loosening, may enhance intraoperative safety by avoiding drilling adjacent to the exposed spinal cord. By shifting the critical drilling step to before spinal canal exposure, this technique simplifies the surgical workflow. Although its impact on the learning curve requires further investigation, the procedure is technically straightforward and may facilitate adoption by surgeons in training.

Indexed as

Bone PlatesBone ScrewsCervical VertebraeLaminoplastySpondylosisAgedFemaleHumansMaleMiddle AgedProspective StudiesRange of Motion, ArticularTitaniumTreatment OutcomeTitaniumCervical spineLaminoplastyOpen-doorPre-drilled screw pathTitanium plate fixation

Identifiers

PMID42183875

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.