Evidence map›Paper›PMID 30778723›Full record

SynthesisArchives of orthopaedic and trauma surgery2019

The outcomes of total knee arthroplasty in morbidly obese patients: a systematic review of the literature.

Louis Boyce, Anoop Prasad, Matthew Barrett, Sebastian Dawson-Bowling, Steven Millington, Sammy A Hanna, Pramod Achan

Registry-linked trialAbstract readSystematic Review
In one paragraph

Synthesis in Archives of orthopaedic and trauma surgery, 2019. The graph could read no effect estimate from its abstract, so it casts no vote on the map. It is linked to trial NCT04910048 (Impact of a Preoperative Patient Optimization Program on Preoperative Health, Eligibility, and Clinical & Patient-Reported Outcomes in Total Joint Arthroplasty), which is not on this map. Cited by 75 papers, 2 of them syntheses that pooled it.

0numbers the graph read from it
0cells of the map it votes in
75citing 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.

NCT04910048 nacompletednot on this mapstarted 2022, after this paper: background citation

Impact of a Preoperative Patient Optimization Program on Preoperative Health, Eligibility, and Clinical & Patient-Reported Outcomes in Total Joint Arthroplasty

TypeinterventionalSponsorUniversity of ArkansasRan2022 to 2024Enrolled46ConditionsOsteoarthritis, Knee, Osteoarthritis, Hip, Avascular Necrosis, Rheumatoid ArthritisArmsPOPOP (preoperative patient optimization program), SOC (standard of care)
3 · Its place in the literature

Who cites it

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

  1. Pooled it
  2. The effect of obesity on revision rate in unicompartmental knee arthroplasty: a systematic review and meta-analysis.Knee surgery, sports traumatology, arthroscopy : official journal of the ESSKA · 2021
    Pooled it
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  18. The Effect of Obesity on Simultaneous Bilateral Knee Arthroplasty Surgery.Journal of the American Academy of Orthopaedic Surgeons. Global research & reviews · 2025
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15 more citing papers are in PubMed but not listed here.

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.

Louis BoyceBarts and the London School of Medicine and Dentistry, Whitechapel, London, E1 2AD, UK.ORCID http://orcid.org/0000-0002-7935-6434
Anoop PrasadRoyal London Hospital, Barts Health NHS Trust, Whitechapel, London, E1 1BB, UK.
Matthew BarrettBarts and the London School of Medicine and Dentistry, Whitechapel, London, E1 2AD, UK.
Sebastian Dawson-BowlingRoyal London Hospital, Barts Health NHS Trust, Whitechapel, London, E1 1BB, UK.
Steven MillingtonRoyal London Hospital, Barts Health NHS Trust, Whitechapel, London, E1 1BB, UK.
Sammy A HannaRoyal London Hospital, Barts Health NHS Trust, Whitechapel, London, E1 1BB, UK. sammy.hanna@bartshealth.nhs.uk.
Pramod AchanRoyal London Hospital, Barts Health NHS Trust, Whitechapel, London, E1 1BB, UK.

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

introductionThe increasing prevalence of obesity has led to an increase in total knee arthroplasties (TKAs) being undertaken in patients with a higher body mass index (BMI). TKA in morbidly obese patients can be technically challenging due to numerous anatomical factors and patient co-morbidities. The long-term outcomes in this patient group are unclear. This systematic review aims to compare the long-term revision rates, functional outcomes and complication rates of TKAs in morbidly obese versus non-obese patients.

methodsA search of PubMed, EMBASE and PubMed Central was conducted to identify studies that reported revision rates in a cohort of morbidly obese patients (BMI ≥ 40 kg/m

resultsNine studies were included in this review. There were 624 TKAs in morbidly obese patients and 9,449 TKAs in non-obese patients, average BMI values were 45.0 kg/m

conclusionsThis review suggests an increased mid to long-term revision rate following primary TKA in morbidly obese patients, however, these patients have a functional recovery which is comparable to non-obese individuals. There is also an increased risk of perioperative complications, such as superficial wound infection. Morbidly obese patients should be fully informed of these issues prior to undergoing primary TKA.

Indexed as

Arthroplasty, Replacement, KneeCohort StudiesHumansObesity, MorbidTreatment OutcomeComplication ratesComplicationsFunctional outcomeInfectionInfection ratesKnee Society Functional scoresKnee Society Objective scoresKSFSKSOSMorbid obesityNon-obeseObesityProsthetic infectionQuality of lifeRevision rateSuperficial wound infectionTKATKRTotal knee arthroplastyTotal knee replacementWound healing delayWound healing problems

Identifiers

PMID30778723
PMCPMC6420900

What OpenQuestion holds

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Registered trials

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.