Evidence map›Paper›PMID 35000338›Full record

ArticleNeurospine2021

Risk Factors of Unsatisfactory Robot-Assisted Pedicle Screw Placement: A Case-Control Study.

Qi Zhang, Ming-Xing Fan, Xiao-Guang Han, Ya-Jun Liu, Da He, Bo Liu, Wei Tian

Open access · diamondAbstract read
In one paragraph

Article in Neurospine, 2021. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 26 papers, 1 of them a synthesis that pooled it.

0numbers the graph read from it
0cells of the map it votes in
26citing papers in PubMed, 1 pooled it
5.2field-weighted citation impact, top 3% 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

26 citing papers in PubMed, 1 synthesis or guideline pooled it, 35 citations in OpenAlex.

  1. Pooled it
  2. Feasibility of synthetic CT images for robotic pedicle screw planning and navigation.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
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  9. Factors causing deviation of robot-assisted pedicle screw placement for adolescent idiopathic scoliosis: why does deviation still occur even with robotics?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 · 2025
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4 · The record

Corrections and comments

5 · Who and what money

Authors and funding

7 authors at 1 institution in 1 country.

Qi ZhangDepartment of Spine Surgery, Beijing Jishuitan Hospital, Beijing, China.
Ming-Xing FanDepartment of Spine Surgery, Beijing Jishuitan Hospital, Beijing, China.
Xiao-Guang HanDepartment of Spine Surgery, Beijing Jishuitan Hospital, Beijing, China.
Ya-Jun LiuDepartment of Spine Surgery, Beijing Jishuitan Hospital, Beijing, China.
Da HeDepartment of Spine Surgery, Beijing Jishuitan Hospital, Beijing, China.
Bo LiuDepartment of Spine Surgery, Beijing Jishuitan Hospital, Beijing, China.
Wei TianDepartment of Spine Surgery, Beijing Jishuitan Hospital, Beijing, China.
Peking University · CN

Funding

National Natural Science Foundation of China U1713221
6 · The paper itself

Abstract

objectiveTo identify potential risk factors of unsatisfactory screw position during robot-assisted pedicle screw fixation.

methodsA retrospective analysis of robot-assisted pedicle screw fixation performed in Beijing Jishuitan Hospital from March 2018 to March 2019 was conducted. Research data was collected from the medical record and imaging systems. Univariate tests were performed on the potential risk factors (patient's characteristics and surgical factors) of unsatisfactory screw position during robot-assisted pedicle screw fixation. For statistically significant variables in univariate tests, a logistic regression test was used to identify independent risk factors for unsatisfactory screw position.

resultsA total of 780 pedicle screws placed in 163 robot-assisted surgeries were analyzed. The rate of perfect screw positions was 93.08%, and the unsatisfactory rate was 6.92%. In patients with severe obesity (body mass index ≥ 30 kg/m2) (odds ratio [OR], 2.459; 95% confidence interval [CI], 1.199-5.044; p = 0.014), osteoporosis (T ≤ -2.5) (OR, 1.857; 95% CI, 1.046-3.295; p = 0.034), and the segments 3 levels away from the tracker (OR, 2.216; 95% CI, 1.119-4.387; p = 0.022), robot-assisted pedicle screw placement has a higher risk of screw malposition.

conclusionDuring robot-assisted pedicle screw placement for patients with severe obesity, osteoporosis, and segments 3 levels away from the tracker, vigilance should be maintained during surgery to avoid postoperative complications due to unsatisfactory screw position.

Indexed as

AccuracyPedicle screwRisk factorRobot-assisted surgery

Identifiers

PMID35000338
PMCPMC8752688
OpenAlexW4200355964

What OpenQuestion holds

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LicenceCC BY-NC
Read underepoch 390

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.