Evidence map›Paper›PMID 29893799›Full record

ArticleAmerican journal of epidemiology2018

Estimating an Individual's Probability of Revision Surgery After Knee Replacement: A Comparison of Modeling Approaches Using a National Data Set.

Parham Aram, Lea Trela-Larsen, Adrian Sayers, Andrew F Hills, Ashley W Blom, Eugene V McCloskey, Visakan Kadirkamanathan, Jeremy M Wilkinson

Open access · hybridAbstract read
In one paragraph

Article in American journal of epidemiology, 2018. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 15 papers, 1 of them a synthesis that pooled it.

0numbers the graph read from it
0cells of the map it votes in
15citing papers in PubMed, 1 pooled it
2.6field-weighted citation impact, top 11% of its field
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

15 citing papers in PubMed, 1 synthesis or guideline pooled it, 29 citations in OpenAlex.

  1. Pooled it
  2. Joint-specific measures improve risk adjustment in total knee arthroplasty: A machine learning approach.Knee surgery, sports traumatology, arthroscopy : official journal of the ESSKA · 2026
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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 at 2 institutions in 1 country.

Parham AramDepartment of Automatic Control and Systems Engineering, University of Sheffield, Sheffield, United Kingdom.
Lea Trela-LarsenSchool of Clinical Sciences, University of Bristol, Bristol, United Kingdom.
Adrian SayersSchool of Clinical Sciences, University of Bristol, Bristol, United Kingdom.
Andrew F HillsDepartment of Automatic Control and Systems Engineering, University of Sheffield, Sheffield, United Kingdom.
Ashley W BlomSchool of Clinical Sciences, University of Bristol, Bristol, United Kingdom.
Eugene V McCloskeyDepartment of Oncology and Metabolism, University of Sheffield, Sheffield, United Kingdom.
Visakan KadirkamanathanDepartment of Automatic Control and Systems Engineering, University of Sheffield, Sheffield, United Kingdom.
Jeremy M WilkinsonDepartment of Oncology and Metabolism, University of Sheffield, Sheffield, United Kingdom.
University of Sheffield · GBUniversity of Bristol · GB

Funding

Arthritis Research UK 20894Medical Research Council MR/P020941/1Versus Arthritis 20894
6 · The paper itself

Abstract

Tools that provide personalized risk prediction of outcomes after surgical procedures help patients make preference-based decisions among the available treatment options. However, it is unclear which modeling approach provides the most accurate risk estimation. We constructed and compared several parametric and nonparametric models for predicting prosthesis survivorship after knee replacement surgery for osteoarthritis. We used 430,455 patient-procedure episodes between April 2003 and September 2015 from the National Joint Registry for England, Wales, Northern Ireland, and the Isle of Man. The flexible parametric survival and random survival forest models most accurately captured the observed probability of remaining event-free. The concordance index for the flexible parametric model was the highest (0.705, 95% confidence interval (CI): 0.702, 0.707) for total knee replacement and was 0.639 (95% CI: 0.634, 0.643) for unicondylar knee replacement and 0.589 (95% CI: 0.586, 0.592) for patellofemoral replacement. The observed-to-predicted ratios for both the flexible parametric and the random survival forest approaches indicated that models tended to underestimate the risks for most risk groups. Our results show that the flexible parametric model has a better overall performance compared with other tested parametric methods and has better discrimination compared with the random survival forest approach.

Indexed as

AdultAgedAged, 80 and overAnticoagulantsArthroplasty, Replacement, KneeBody Mass IndexDecision TreesEnglandFemaleHealth StatusHumansMaleMiddle AgedModels, StatisticalProsthesis FailureReoperationAnticoagulants

Identifiers

PMID29893799
PMCPMC6166214
OpenAlexW2808165349

What OpenQuestion holds

Textmetadata
LicenceCC BY
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.