Evidence map›Paper›PMID 29856769›Full record

ArticlePloS one2018

Surgical training does not affect operative time and outcome in total knee arthroplasty.

Markus Weber, Michael Worlicek, Florian Voellner, Michael Woerner, Achim Benditz, Daniela Weber, Joachim Grifka, Tobias Renkawitz

Abstract read
In one paragraph

Article in PloS one, 2018. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 16 papers, 2 of them syntheses that pooled it.

0numbers the graph read from it
0cells of the map it votes in
16citing 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

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

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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

8 authors.

Markus WeberDepartment of Orthopaedic Surgery, Regensburg University, Medical Center, Bad Abbach, Germany.ORCID 0000-0001-8203-0382
Michael WorlicekDepartment of Orthopaedic Surgery, Regensburg University, Medical Center, Bad Abbach, Germany.
Florian VoellnerDepartment of Orthopaedic Surgery, Regensburg University, Medical Center, Bad Abbach, Germany.
Michael WoernerDepartment of Orthopaedic Surgery, Regensburg University, Medical Center, Bad Abbach, Germany.
Achim BenditzDepartment of Orthopaedic Surgery, Regensburg University, Medical Center, Bad Abbach, Germany.
Daniela WeberDepartment of Hematology and Oncology, Regensburg University, Medical Center, Regensburg, Germany.
Joachim GrifkaDepartment of Orthopaedic Surgery, Regensburg University, Medical Center, Bad Abbach, Germany.
Tobias RenkawitzDepartment of Orthopaedic Surgery, Regensburg University, Medical Center, Bad Abbach, Germany.

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

Training the next generation of orthopaedic surgeons in total knee arthroplasty (TKA) is crucial, but might affect operative time and outcome. We hypothesized that the learning curve of residents in TKA has an impact on (1) operative time, (2) complication rates and (3) early postoperative outcome. In a retrospective analysis of 738 primary TKAs from our institutional joint registry, operative time, complication rates, patient-reported outcome measures (EQ-5D, WOMAC) within the first year and responder rates for positive outcome as defined by the OMERACT-OARSI criteria were compared between trainee and senior surgeons differentiating between conventional and navigated TKA. Mean operative time was 69.5±18.5min for trainees compared to 77.3±25.8min for senior surgeons (95%CI of the difference 1.5-13.9min, p = 0.02) in conventional TKA and 80.4±22.1min to 84.1±27.6min (95%CI of the difference -0.9-8.2min, p = 0.12) for navigated TKA, respectively. Intraoperative fracture (p≥0.36), thrombosis (p≥0.90), neurological deficits (p≥0.90) and infection rates (p≥0.28) were comparably low in both groups. Patient-reported outcome measures one year after TKA were similar for trainee and senior surgeons with EQ-5D 0.83±0.17 to 0.80±0.21 (p = 0.25) and WOMAC 74.85±18.60 to 72.77±20.12 (p = 0.44) for conventional TKA and EQ-5D 0.80±0.20 to 0.82±0.18 (p = 0.23) and WOMAC 72.71±18.52 to 75.77±17.78 (p = 0.07) for navigated TKA, respectively. Similarly, responder rates for positive outcome were comparable between trainees and senior surgeons (90.7% versus 87.0% p = 0.39 for conventional TKA, 88.7% versus 89.4% p = 0.80 for navigated TKA). Supervised TKA is a safe procedure during the learning curve of young orthopaedic surgeons.

Indexed as

Operative TimeAcademic Medical CentersAgedArthroplasty, Replacement, KneeFemaleHumansMaleOrthopedic SurgeonsRetrospective StudiesTreatment Outcome

Identifiers

PMID29856769
PMCPMC5983555

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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.