Evidence map›Paper›PMID 28840268›Full record

SynthesisKnee surgery, sports traumatology, arthroscopy : official journal of the ESSKA2018

No bias for developer publications and no difference between first-generation trochlear-resurfacing versus trochlear-cutting implants in 15,306 cases of patellofemoral joint arthroplasty.

Birgit Reihs, Florian Reihs, Gerold Labek, Markus Hochegger, Andreas Leithner, Nikolaus Böhler, Patrick Sadoghi

Abstract readMeta-Analysis
PubMed Publisher
In one paragraph

Synthesis in Knee surgery, sports traumatology, arthroscopy : official journal of the ESSKA, 2018. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 4 papers.

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

4 citing papers in PubMed.

  1. The projected economic burden and complications of revision hip and knee arthroplasties: Insights from national registry studies.Knee surgery, sports traumatology, arthroscopy : official journal of the ESSKA · 2025
    Review
  2. Review
  3. Early outcomes of an anatomic trochlear-cutting patellofemoral arthroplasty: patient selection is key.Knee surgery, sports traumatology, arthroscopy : official journal of the ESSKA · 2019
    Article
  4. Patella alta and patellar subluxation might lead to early failure with inlay patello-femoral joint arthroplasty.Knee surgery, sports traumatology, arthroscopy : official journal of the ESSKA · 2019
    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

7 authors.

Birgit ReihsDepartment of Orthopaedics and Trauma, Medical University of Graz, Auenbruggerplatz 5, 8036, Graz, Austria.
Florian ReihsDepartment of Orthopaedics and Trauma, Medical University of Graz, Auenbruggerplatz 5, 8036, Graz, Austria.
Gerold LabekMedical University of Innsbruck, Innsbruck, Austria.
Markus HocheggerDepartment of Orthopaedic Surgery, Landeskrankenhaus Stolzalpe, Murau, Austria.
Andreas LeithnerDepartment of Orthopaedics and Trauma, Medical University of Graz, Auenbruggerplatz 5, 8036, Graz, Austria.
Nikolaus BöhlerDepartment of Orthopaedic Surgery, AKH Linz, Linz, Austria.
Patrick SadoghiDepartment of Orthopaedics and Trauma, Medical University of Graz, Auenbruggerplatz 5, 8036, Graz, Austria. patricksadoghi@gmx.at.

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

purpose and hypothesisThe study aim was to assess the outcome of patellofemoral arthroplasty (PFA), paying particular interest to 'revisions for any reason'. The hypothesis was that there is a superior outcome of PFA reported in dependent clinical studies in contrast to independent clinical literature and that there is a superior outcome of 'trochlear-cutting' PFA in comparison with 'first-generation trochlear-resurfacing' implants.

methodsStudies on PFA from its market introduction in 1955 onwards were systematically reviewed. The revision rate, which was calculated as 'revisions per 100 component years (CY)', was evaluated in 45 studies published in indexed, peer-reviewed international scientific journals. In addition, 'first-generation trochlear-resurfacing' and 'trochlear-cutting' implants as well as dependent and independent clinical literature were analysed. Furthermore, the data of three arthroplasty registers were analysed.

resultsA total of 15,306 PFA were included consisting of 2266 cases in worldwide literature data and of 13,040 cases in register data. 2.22 revisions per 100 CY were observed in worldwide literature data, which corresponds to a revision rate of 22.2% after 10 years. Revision rates between 18.9 and 27% after 10 years were shown by the included three national joint registers. In the group analyses no significant differences were detected.

conclusionsThis meta-analysis did not reveal significant differences in the comparison between developer over independent publications and between 'first-generation-resurfacing' over 'trochlear-cutting' implants. In conclusion the data of developer publications do not seem to be biased. 'Trochlear-cutting' devices of PFA had slightly superior outcomes, but that benefit was not statistically significant. Nevertheless, we would recommend 'trochlear-cutting' devices for further use in PFA. LEVEL OF EVIDENCE: Meta-analysis of Level IV case series.

Indexed as

Knee ProsthesisArthroplasty, Replacement, KneeHumansPatellofemoral JointReoperationTreatment OutcomeArthroplasty registerOutcome analysisPatellofemoral arthroplastyRevision rate

Identifiers

PMID28840268

What OpenQuestion holds

Textmetadata
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.