Evidence map›Paper›PMID 31663290›Full record

ArticleOrthopaedic surgery2019

Comparison of Superior-Level Facet Joint Violations Between Robot-Assisted Percutaneous Pedicle Screw Placement and Conventional Open Fluoroscopic-Guided Pedicle Screw Placement.

Qi Zhang, Yun-Feng Xu, Wei Tian, Xiao-Feng Le, Bo Liu, Ya-Jun Liu, Da He, Yu-Qin Sun, Qiang Yuan, Zhao Lang and 1 more

Abstract readComparative Study
In one paragraph

Article in Orthopaedic surgery, 2019. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 43 papers, 5 of them syntheses that pooled it.

0numbers the graph read from it
0cells of the map it votes in
43citing papers in PubMed, 5 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

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

43 citing papers in PubMed, 5 syntheses or guidelines pooled it.

  1. Pooled it
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  6. Trial
  7. Thoracolumbar burst fractures: robot-assisted mono-segment fixation with vertebral body grafting versus short-segment fixation - a propensity score-matched cohort study.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
    Article
  8. Review
  9. Article
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  12. Robot-assistedWorld journal of orthopedics · 2025
    Article
  13. Robot-Assisted vs Fluoroscopy-Guided Minimally Invasive Transforaminal Lumbar Interbody Fusion for Lumbar Degenerative Diseases: A Comparative Study.Medical science monitor : international medical journal of experimental and clinical research · 2025
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  14. Review
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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

11 authors.

Qi ZhangDepartment of Spine Surgery, Peking University Fourth School of Clinical Medicine, Beijing, China.
Yun-Feng XuDepartment of Spine Surgery, Peking University Fourth School of Clinical Medicine, Beijing, China.
Wei TianDepartment of Spine Surgery, Peking University Fourth School of Clinical Medicine, Beijing, China.ORCID https://orcid.org/0000-0002-1067-600X
Xiao-Feng LeDepartment of Spine Surgery, Peking University Fourth School of Clinical Medicine, Beijing, China.
Bo LiuDepartment of Spine Surgery, Peking University Fourth School of Clinical Medicine, Beijing, China.
Ya-Jun LiuDepartment of Spine Surgery, Peking University Fourth School of Clinical Medicine, Beijing, China.
Da HeDepartment of Spine Surgery, Peking University Fourth School of Clinical Medicine, Beijing, China.
Yu-Qin SunDepartment of Spine Surgery, Peking University Fourth School of Clinical Medicine, Beijing, China.
Qiang YuanDepartment of Spine Surgery, Peking University Fourth School of Clinical Medicine, Beijing, China.
Zhao LangDepartment of Spine Surgery, Peking University Fourth School of Clinical Medicine, Beijing, China.
Xiao-Guang HanDepartment of Spine Surgery, Peking University Fourth School of Clinical Medicine, Beijing, China.

Funding

National Natural Science Foundation of China U1713221Natural Science Foundation of Beijing Municipality 7174311Natural Science Foundation of Beijing Municipality Z170001
6 · The paper itself

Abstract

objectiveTo compare the superior-level facet joint violations (FJV) between robot-assisted (RA) percutaneous pedicle screw placement and conventional open fluoroscopic-guided (FG) pedicle screw placement in a prospective cohort study.

methodsThis was a prospective cohort study without randomization. One-hundred patients scheduled to undergo RA (n = 50) or FG (n = 50) transforaminal lumbar interbody fusion were included from February 2016 to May 2018. The grade of FJV, the distance between pedicle screws and the corresponding proximal facet joint, and intra-pedicle accuracy of the top screw were evaluated based on postoperative CT scan. Patient demographics, perioperative outcomes, and radiation exposure were recorded and compared. Perioperative outcomes include surgical time, intraoperative blood loss, postoperative length of stay, conversion, and revision surgeries.

resultsOf the 100 screws in the RA group, 4 violated the proximal facet joint, while 26 of 100 in the FG group had FJV (P = 0.000). In the RA group, 3 and 1 screws were classified as grade 1 and 2, respectively. Of the 26 FJV screws in the FG group, 17 screws were scored as grade 1, 6 screws were grade 2, and 3 screws were grade 3. Significantly more severe FJV were noted in the FG group than in the RA group (P = 0.000). There was a statistically significant difference between RA and FG for overall violation grade (0.05 vs 0.38, P = 0.000). The average distance of pedicle screws from facet joints in the RA group (4.16 ± 2.60 mm) was larger than that in the FG group (1.92 ± 1.55 mm; P = 0.000). For intra-pedicle accuracy, the rate of perfect screw position was greater in the RA group than in the FG group (85% vs 71%; P = 0.017). No statistically significant difference was found between the clinically acceptable screws between groups (P = 0.279). The radiation dose was higher in the FG group (30.3 ± 11.3 vs 65.3 ± 28.3 μSv; P = 0.000). The operative time in the RA group was significantly longer (184.7 ± 54.3 vs 117.8 ± 36.9 min; P = 0.000).

conclusionsCompared to the open FG technique, minimally invasive RA spine surgery was associated with fewer proximal facet joint violations, larger facet to screw distance, and higher intra-pedicle accuracy.

Indexed as

Pedicle ScrewsAdultAgedFemaleFluoroscopyHumansLumbar VertebraeMaleMiddle AgedProspective StudiesRobotic Surgical ProceduresSpinal FusionZygapophyseal JointCohort studyFreehand techniqueProximal facet joint violationRobotic-assisted pedicle screw fixation

Identifiers

PMID31663290
PMCPMC6819175

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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.