Evidence map›Paper›PMID 32258107›Full record

SynthesisBioMed research international2020

Patient-Specific or Conventional Instrumentations: A Meta-analysis of Randomized Controlled Trials.

Yipeng Lin, Wufeng Cai, Baoyun Xu, Jian Li, Yuan Yang, Xuelin Pan, Weili Fu

Abstract readMeta-AnalysisReview
In one paragraph

Synthesis in BioMed research international, 2020. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 14 papers, 2 of them syntheses that pooled it.

0numbers the graph read from it
0cells of the map it votes in
14citing papers in PubMed, 2 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

14 citing papers in PubMed, 2 syntheses or guidelines pooled it.

  1. Pooled it
  2. Pooled it
  3. Precision medicine in orthopaedics: A review of current technologies and future directions.Knee surgery, sports traumatology, arthroscopy : official journal of the ESSKA · 2026
    Review
  4. [The importance of individual knee arthroplasty].Orthopadie (Heidelberg, Germany) · 2025
    Article
  5. Article
  6. Article
  7. Article
  8. Review
  9. Article
  10. Article
  11. Article
  12. Review
  13. Review
  14. Knee Prosthesis in the Computer Era.Orthopaedic surgery · 2021
    Review
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

7 authors.

Yipeng LinDepartment of Orthopedic Surgery, West China Hospital, Sichuan University, Chengdu 610041, China.
Wufeng CaiDepartment of Orthopedic Surgery, West China Hospital, Sichuan University, Chengdu 610041, China.
Baoyun XuDepartment of Orthopedic Surgery, West China Hospital, Sichuan University, Chengdu 610041, China.
Jian LiDepartment of Orthopedic Surgery, West China Hospital, Sichuan University, Chengdu 610041, China.ORCID https://orcid.org/0000-0002-2620-3821
Yuan YangDepartment of Orthopedic Surgery, West China Hospital, Sichuan University, Chengdu 610041, China.
Xuelin PanDepartment of Radiology, West China Hospital, Sichuan University, Chengdu 610041, China.
Weili FuDepartment of Orthopedic Surgery, West China Hospital, Sichuan University, Chengdu 610041, China.ORCID https://orcid.org/0000-0003-4438-2760

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

objectiveTo conduct a meta-analysis of randomized controlled trials (RCTs) to compare knee arthroplasty with patient-specific instrumentation (PSI) with the conventional instrumentation (CI).

methodsRCTs were selected in PubMed and Embase from 2012 to 2018. Key data extracted included malalignment of mechanical axis, blood loss, surgical time, Oxford Knee Score (OKS), Knee Society Score (KSS), length of stay, and complications. Subgroup analysis was also performed regarding different PSI systems and different image processing methods.

results29 RCTs with 2487 knees were eligible for the meta-analysis. Results showed that PSI did not improve the alignment of the mechanical axis compared with CI, but MRI-based PSI and Visionaire-specific PSI decrease the risk of malalignment significantly (

conclusionPSI reduced the blood loss and improved KSS. MRI-based PSI reduced operative time and risk of malalignment of mechanical axis compared with CT-based PSI. Moreover, Visionaire-specific PSI achieves better alignment result of the mechanical axis than other systems.

Indexed as

Arthroplasty, Replacement, KneeFemurHumansKnee JointKnee ProsthesisOperative TimeOsteoarthritis, KneeRandomized Controlled Trials as TopicSurgery, Computer-AssistedTreatment Outcome

Identifiers

PMID32258107
PMCPMC7085852

What OpenQuestion holds

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LicenceCC BY
Read underepoch 390

Registered trials

None linked

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.