Evidence map›Paper›PMID 23942939›Full record

ArticleKnee surgery, sports traumatology, arthroscopy : official journal of the ESSKA2013

Patient-specific instruments: industry's innovation with a surgeon's interest.

Emmanuel Thienpont, Johan Bellemans, Hendrik Delport, Philippe Van Overschelde, Bart Stuyts, Karl Brabants, Jan Victor

Abstract read
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In one paragraph

Article in Knee surgery, sports traumatology, arthroscopy : official journal of the ESSKA, 2013. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 21 papers, 2 of them syntheses that pooled it.

0numbers the graph read from it
0cells of the map it votes in
21citing 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

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

  1. Pooled it
  2. Pooled it
  3. The impact of patient-specific instrumentation on unicompartmental knee arthroplasty: a prospective randomised controlled study.Knee surgery, sports traumatology, arthroscopy : official journal of the ESSKA · 2018
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  12. No free lunch in orthopedics.International orthopaedics · 2017
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  13. The accuracy of bony resection from patient-specific guides during total knee arthroplasty.Knee surgery, sports traumatology, arthroscopy : official journal of the ESSKA · 2017
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  14. Assessing the accuracy of patient-specific guides for 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.

Emmanuel ThienpontUniversity Hospital Saint Luc, Av. Hippocrate 10, 1200, Brussels, Belgium, emmanuel.thienpont@uclouvain.be.
Johan Bellemans
Hendrik Delport
Philippe Van Overschelde
Bart Stuyts
Karl Brabants
Jan Victor

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

purposeThe aim of this study was (1) to survey the orthopaedic companies about the volume of patient-specific instruments (PSI) used in Europe and worldwide; (2) to survey a group of knee arthroplasty surgeons on their acceptance of PSI and finally; (3) to survey a medico-legal expert on PSI-related issues.

methodsSeven orthopaedic implant manufacturers were contacted to obtain their sales figures (in volume) of PSI in Europe and worldwide for the 2011 and 2012 period. During the Open Meeting of the Belgian Knee Society, a survey by a direct voting system was submitted to a selection of knee surgeons. Finally, a number of medico-legal 'PSI-related' questions were submitted to an adult reconstruction surgeon/legal expert.

resultsThe total volume, for all contacted companies, of PSI in Europe for 2012 was 17,515 total knee arthroplasty (TKA) and 82,556 TKA worldwide. Biomet (Warsaw, USA) was the number one in volume, both in Europe as worldwide with their Signature system. Biomet represented 27 % of the market share in PSI worldwide. Stryker preferred not to reply to the survey because of the FDA class 1 recall on ShapeMatch cutting guides. Eighty per cent of the Belgian knee surgeons expressed a great interest in PSI and especially, for 58 % of them, if it would increase their surgical accuracy. They valued it even more in unicompartmental arthroplasty, and 55 % was ready to use single-use instruments. Surprisingly, 47 % of surgeons thought it was the company's responsibility if something goes wrong with a PSI-assisted case. The medico-legal expert concluded that PSI is a complex process that exposes surgeons to new risks in case of failure and stated that companies should not produce surgical guides without validation of the planning by the surgeon.

conclusionPatient-specific instruments is of great interest if it can proof to increase the surgical accuracy in knee arthroplasty to the level surgeons are expecting and if in the same time it would make the surgical process more efficient. LEVEL OF EVIDENCE: V.

Indexed as

AdultArthroplasty, Replacement, KneeAttitude of Health PersonnelEuropeHealth Care SurveysHumansImaging, Three-DimensionalKnee ProsthesisMagnetic Resonance ImagingPractice Patterns, Physicians'Preoperative CareSurgery, Computer-AssistedSurveys and QuestionnairesTomography, X-Ray Computed

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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.