Evidence map›Paper›PMID 31270591›Full record

Trial reportKnee surgery, sports traumatology, arthroscopy : official journal of the ESSKA2020

Comparable clinical outcome and implant longevity after CT- or MRI-based patient-specific instruments for total knee arthroplasty: a 2-year follow-up of a RCT.

Elke Thijs, Dieuwertje Theeuwen, Bert Boonen, Emil van Haaren, Roel Hendrickx, Rein Vos, Rob Borghans, Nanne Kort, Martijn G M Schotanus

Abstract readRandomized Controlled Trial
PubMed Publisher
In one paragraph

Trial report in Knee surgery, sports traumatology, arthroscopy : official journal of the ESSKA, 2020. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 3 papers, 1 of them a synthesis that pooled it.

0numbers the graph read from it
0cells of the map it votes in
3citing papers in PubMed, 1 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

3 citing papers in PubMed, 1 synthesis or guideline pooled it.

  1. Pooled it
  2. Trial
  3. Article
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.

Elke Thijs *Department of Orthopaedic Surgery, Zuyderland Medical Centre, Dr. H. van der Hoffplein 1, 6162 BG, Sittard-Geleen, The Netherlands.
Dieuwertje Theeuwen *Department of Orthopaedic Surgery, Zuyderland Medical Centre, Dr. H. van der Hoffplein 1, 6162 BG, Sittard-Geleen, The Netherlands.
Bert BoonenDepartment of Orthopaedic Surgery, Zuyderland Medical Centre, Dr. H. van der Hoffplein 1, 6162 BG, Sittard-Geleen, The Netherlands.
Emil van HaarenDepartment of Orthopaedic Surgery, Zuyderland Medical Centre, Dr. H. van der Hoffplein 1, 6162 BG, Sittard-Geleen, The Netherlands.
Roel HendrickxDepartment of Orthopaedic Surgery, Zuyderland Medical Centre, Dr. H. van der Hoffplein 1, 6162 BG, Sittard-Geleen, The Netherlands.
Rein VosDepartment of Methodology and Statistics, Maastricht University Medical Center, Maastricht, The Netherlands.
Rob BorghansDepartment of Radiology, Zuyderland Medical Center, Sittard-Geleen, The Netherlands.
Nanne Kort, Roosteren, The Netherlands.
Martijn G M SchotanusDepartment of Orthopaedic Surgery, Zuyderland Medical Centre, Dr. H. van der Hoffplein 1, 6162 BG, Sittard-Geleen, The Netherlands. martijnschotanus@hotmail.com.ORCID http://orcid.org/0000-0002-3975-6337

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

purposePatient-specific instruments (PSI) are already widespread used in total knee arthroplasty (TKA). Either computed tomography (CT) scans or magnetic resonance imaging (MRI) scans are used pre-operatively to create jigs to guide resection during surgery. This study is a sequel of previous work that showed significantly more radiological outliers for posterior slope when CT-based guides were used. The aim of this study was to assess differences in revision rate and clinical outcome between the two groups at 2-year follow-up.

methodsAt the 2-year follow-up, 124 patients were analysed in this prospective, randomised single-blind study. A survival analysis with revision of the TKA as endpoint was performed. Patients fulfilled four patient-reported outcome measurements (PROMs). Scores on the questionnaires were compared between both groups at the different follow-up visits.

resultsAt final follow-up, there was no significant difference in the survival rates of the CT- and MRI-based PSI surgery. Postoperatively, the PROMs significantly improved within each group compared with the pre-operative values. There were no significant differences for the PROMs between both groups at the 2-years follow-up.

conclusionsAlthough previous results showed more outliers regarding posterior slope for CT-based PSIs, no difference in revision rate or the outcome of PROMs was found at 2-year follow-up. Further research to determine what the influence is of radiological outliers on implant survival and clinical outcomes is necessary. LEVEL OF EVIDENCE: I.

Indexed as

Equipment Failure AnalysisKnee ProsthesisMagnetic Resonance ImagingTomography, X-Ray ComputedArthroplasty, Replacement, KneeFemaleFollow-Up StudiesHumansKnee JointMaleOsteoarthritis, KneePatient Reported Outcome MeasuresProspective StudiesReoperationSingle-Blind MethodSurgery, Computer-AssistedClinical outcomeComputed tomographyCTMagnetic resonance imagingMRIPatients-specific instrumentsPSIRevision rateSurvivalTotal knee arthroplastyTotal knee replacement

Identifiers

PMID31270591

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.