Evidence map›Paper›PMID 34247491›Full record

ArticleBone & joint open2021

Should isolated morbid obesity influence the decision to operate in hip and knee arthroplasty?

Peter F Crookes, Roslyn S Cassidy, Aleksander Machowicz, Janet C Hill, John McCaffrey, Gillian Turner, David Beverland

Open access · goldAbstract read
In one paragraph

Article in Bone & joint open, 2021. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 2 papers.

0numbers the graph read from it
0cells of the map it votes in
2citing papers in PubMed
1.7field-weighted citation impact, top 16% 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

2 citing papers in PubMed, 10 citations in OpenAlex.

  1. Article
  2. 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 at 1 institution in 1 country.

Peter F CrookesOutcomes Unit, Primary Joint Unit, Musgrave Park Hospital, Belfast, UK.
Roslyn S CassidyOutcomes Unit, Primary Joint Unit, Musgrave Park Hospital, Belfast, UK.ORCID https://orcid.org/0000-0001-6649-3539
Aleksander MachowiczOutcomes Unit, Primary Joint Unit, Musgrave Park Hospital, Belfast, UK.
Janet C HillOutcomes Unit, Primary Joint Unit, Musgrave Park Hospital, Belfast, UK.
John McCaffreyDepartment of Anaesthetics, Musgrave Park Hospital, Belfast, UK.
Gillian TurnerDepartment of Anaesthetics, Musgrave Park Hospital, Belfast, UK.
David BeverlandOutcomes Unit, Primary Joint Unit, Musgrave Park Hospital, Belfast, UK.
Musgrave Park Hospital · GB

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

aimsWe studied the outcomes of hip and knee arthroplasties in a high-volume arthroplasty centre to determine if patients with morbid obesity (BMI ≥ 40 kg/m

methodsIn a two-year period, 4,711 patients had either total hip arthroplasty (THA; n = 2,370), total knee arthroplasty (TKA; n = 2,109), or unicompartmental knee arthroplasty (UKA; n = 232). Of these patients, 392 (8.3%) had morbid obesity. We compared duration of operation, anaesthetic time, length of stay (LOS), LOS > three days, out of hours attendance, emergency department attendance, readmission to hospital, return to theatre, and venous thromboembolism up to 90 days. Readmission for wound infection was recorded to one year. Oxford scores were recorded preoperatively and at one year postoperatively.

resultsOn average, the morbidly obese had longer operating times (63 vs 58 minutes), longer anaesthetic times (31 vs 28 minutes), increased LOS (3.7 vs 3.5 days), and significantly more readmissions for wound infection (1.0% vs 0.3%). There were no statistically significant differences in either suspected or confirmed venous thromboembolism. Improvement in Oxford scores were equivalent.

conclusionAlthough morbidly obese patients had less favourable outcomes, we do not feel that the magnitude of difference is clinically significant when applied to an individual, particularly when improvement in Oxford scores were unrelated to BMI. Cite this article:

Indexed as

arthroplastyhipkneeMorbid Obesity

Identifiers

PMID34247491
PMCPMC8325969
OpenAlexW3179476241

What OpenQuestion holds

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LicenceCC BY-NC-ND
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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.