Evidence map›Paper›PMID 34556506›Full record

ArticleBMJ open2021

Does pre-existing morbidity influences risks and benefits of total hip replacement for osteoarthritis: a prospective study of 6682 patients from linked national datasets in England.

Rory Ferguson, Daniel Prieto-Alhambra, George Peat, Antonella Delmestri, Kelvin P Jordan, Vicky Y Strauss, Jose Maria Valderas, Christine Walker, Dahai Yu, Sion Glyn-Jones and 1 more

Open access · goldAbstract read
In one paragraph

Article in BMJ open, 2021. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 11 papers, 3 of them syntheses that pooled it.

0numbers the graph read from it
0cells of the map it votes in
11citing papers in PubMed, 3 pooled it
2.9field-weighted citation impact, top 8% 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

11 citing papers in PubMed, 3 syntheses or guidelines pooled it, 23 citations in OpenAlex.

  1. Pooled it
  2. Pooled it
  3. Pooled it
  4. 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
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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

11 authors at 3 institutions in 1 country.

Rory FergusonNuffield Department of Orthopaedics, Rheumatology, and Musculoskeletal Sciences, University of Oxford, Oxford, UK.ORCID 0000-0002-3256-6434
Daniel Prieto-AlhambraCentre for Statistics in Medicine, Nuffield Department of Orthopaedics, Rheumatology, and Musculoskeletal Sciences, University of Oxford, Oxford, UK.ORCID 0000-0002-3950-6346
George PeatPrimary Care Centre Versus Arthritis, School of Medicine, Keele University, Keele, UK.ORCID 0000-0002-9008-0184
Antonella DelmestriNuffield Department of Orthopaedics, Rheumatology, and Musculoskeletal Sciences, University of Oxford, Oxford, UK.ORCID 0000-0003-0388-3403
Kelvin P JordanPrimary Care Centre Versus Arthritis, School of Medicine, Keele University, Keele, UK.ORCID 0000-0003-4748-5335
Vicky Y StraussCentre for Statistics in Medicine, Nuffield Department of Orthopaedics, Rheumatology, and Musculoskeletal Sciences, University of Oxford, Oxford, UK.
Jose Maria ValderasHealth Services and Policy Research Group, Medical School, University of Exeter, Exeter, UK.ORCID 0000-0002-9299-1555
Christine WalkerResearch User Group, Primary Care Centre Versus Arthritis, School of Medicine, Keele University, Keele, UK.
Dahai YuPrimary Care Centre Versus Arthritis, School of Medicine, Keele University, Keele, UK.ORCID 0000-0002-8449-7725
Sion Glyn-JonesNuffield Department of Orthopaedics, Rheumatology, and Musculoskeletal Sciences, University of Oxford, Oxford, UK.
Alan SilmanNuffield Department of Orthopaedics, Rheumatology, and Musculoskeletal Sciences, University of Oxford, Oxford, UK alan.silman@ndorms.ox.ac.uk.ORCID 0000-0001-8426-8925
Nuffield Orthopaedic Centre · GBArthritis UK · GBUniversity of Exeter · GB

Funding

Department of Health PB-PG-0815-20024
6 · The paper itself

Abstract

Total hip arthroplasty (THA) surgery for elderly people with multimorbidity increases the risk of serious health hazards including mortality. Whether such background morbidity reduces the clinical benefit is less clear.

objectiveTo evaluate how pre-existing health status, using multiple approaches, influences risks of, and quality of life benefits from, THA.

settingLongitudinal record linkage study of a UK sample linking their primary care to their secondary care records.

participantsA total of 6682 patients were included, based on the recording of the diagnosis of hip osteoarthritis in a national primary care register and the recording of the receipt of THA in a national secondary care register.Data were extracted from the primary care register on background health and morbidity status using five different constructs: Charlson Comorbidity Index, Electronic Frailty Index (eFI) and counts of comorbidity disorders (from list of 17), prescribed medications and number of primary care visits prior to recording of THA. OUTCOME MEASURES: (1) Postoperative complications and mortality; (2) postoperative hip pain and function using the Oxford Hip Score (OHS) and health-related quality of life using the EuroQoL (EQ)-5D score.

resultsPerioperative complication rate was 3.2% and mortality was 0.9%, both increased with worse preoperative health status although this relationship varied depending on the morbidity construct: the eFI showing the strongest relationship but number of visits having no predictive value. By contrast, the benefits were not reduced in those with worse preoperative health, and improvement in both OHS and EQ-5D was observed in all the morbidity categories.

conclusionsIndependent of preoperative morbidity, THA leads to similar substantial improvements in quality of life. These are offset by an increase in medical complications in some subgroups of patients with high morbidity, depending on the definition used. For most elderly people, their other health disorders should not be a barrier for THA.

Indexed as

Arthroplasty, Replacement, HipOsteoarthritis, HipAgedHumansMorbidityProspective StudiesQuality of LifeRisk Assessmentgeriatric medicinehiporthopaedic & trauma surgerysurgery

Identifiers

PMID34556506
PMCPMC8461685
OpenAlexW3199679243

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.