Evidence map›Paper›PMID 25026931›Full record

SynthesisKnee surgery, sports traumatology, arthroscopy : official journal of the ESSKA2015

No difference in mechanical alignment and femoral component placement between patient-specific instrumentation and conventional instrumentation in TKA.

Huichao Fu, Jiaxing Wang, Shenyuan Zhou, Tao Cheng, Wen Zhang, Qi Wang, Xianlong Zhang

Abstract readComparative StudyMeta-AnalysisSystematic Review
PubMed Publisher
In one paragraph

Synthesis in Knee surgery, sports traumatology, arthroscopy : official journal of the ESSKA, 2015. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 21 papers, 4 of them syntheses that pooled it.

0numbers the graph read from it
0cells of the map it votes in
21citing papers in PubMed, 4 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

21 citing papers in PubMed, 4 syntheses or guidelines pooled it.

  1. Pooled it
  2. Pooled it
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  5. Trial
  6. Rotational component alignment in patient-specific total knee arthroplasty compared with conventional cutting instrument.European journal of orthopaedic surgery & traumatology : orthopedie traumatologie · 2019
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  15. Outcomes following total knee arthroplasty with CT-based patient-specific instrumentation.Knee surgery, sports traumatology, arthroscopy : official journal of the ESSKA · 2017
    Article
  16. Alignment in total knee arthroplasty.Knee surgery, sports traumatology, arthroscopy : official journal of the ESSKA · 2016
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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

7 authors.

Huichao FuDepartment of Orthopaedic Surgery, Shanghai Sixth People's Hospital, School of Medicine, Shanghai Jiao Tong University, 600 Yishan Road, Shanghai, 200233, People's Republic of China.
Jiaxing WangDepartment of Orthopaedic Surgery, Shanghai Sixth People's Hospital, School of Medicine, Shanghai Jiao Tong University, 600 Yishan Road, Shanghai, 200233, People's Republic of China.
Shenyuan ZhouDepartment of Orthopaedic Surgery, Shanghai Sixth People's Hospital, School of Medicine, Shanghai Jiao Tong University, 600 Yishan Road, Shanghai, 200233, People's Republic of China.
Tao ChengDepartment of Orthopaedic Surgery, Shanghai Sixth People's Hospital, School of Medicine, Shanghai Jiao Tong University, 600 Yishan Road, Shanghai, 200233, People's Republic of China.
Wen ZhangDepartment of Orthopaedic Surgery, Shanghai Sixth People's Hospital, School of Medicine, Shanghai Jiao Tong University, 600 Yishan Road, Shanghai, 200233, People's Republic of China.
Qi WangDepartment of Orthopaedic Surgery, Shanghai Sixth People's Hospital, School of Medicine, Shanghai Jiao Tong University, 600 Yishan Road, Shanghai, 200233, People's Republic of China.
Xianlong ZhangDepartment of Orthopaedic Surgery, Shanghai Sixth People's Hospital, School of Medicine, Shanghai Jiao Tong University, 600 Yishan Road, Shanghai, 200233, People's Republic of China. zxl201450@hotmail.com.

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

purposeThere is a rising interest in the use of patient-specific instrumentation (PSI) during total knee arthroplasty (TKA). The goal of this meta-analysis was to compare PSI with conventional instrumentation (CI) in patients undergoing TKA.

methodsA literature search was performed in PubMed, Embase, Springer, Ovid, China National Knowledge Infrastructure, and the Cochrane Library. A total of 10 randomized controlled studies involving 837 knees comparing outcomes of PSI TKAs with CI TKAs were included in the present analysis. Outcomes of interest included component alignment, surgical time, blood loss, and hospital stay.

resultsThe results presented no significant differences between the two instrumentations in terms of restoring a neutral mechanical axis and femoral component placement. However, their differences have been noted regarding the alignment of the tibial component in coronal and sagittal planes. Also, 3 min less surgical time was used in PSI patients.

conclusionsBased on these findings, PSI appeared not to be superior to CI in terms of the post-operative mechanical axis of the limb or femoral component placement. Despite a statistical difference for operative duration, the benefit of a small reduction in surgical time with PSI is clinically irrelevant. LEVEL OF EVIDENCE: Therapeutic study (systematic review and meta-analysis), Level I.

Indexed as

Knee ProsthesisPatient-Specific ModelingArthroplasty, Replacement, KneeFemurHumansRandomized Controlled Trials as TopicSurgery, Computer-AssistedConventional instrumentationPatient-specific instrumentationPSITKATotal knee arthroplasty

Identifiers

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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.