Evidence map›Paper›PMID 40933186›Full record

ArticleJournal of experimental orthopaedics2025

Obesity has no adverse effect on the survival of unicompartmental knee arthroplasty in a long-term follow-up of 16 years.

David Zhu, Regis Pailhe, Dany Mouarbes, Ali Alayane, Samy Saoudi, Hasnae Ben-Roummane, Emilie Bérard, Etienne Cavaignac

Abstract read
In one paragraph

Article in Journal of experimental orthopaedics, 2025. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 3 papers.

0numbers the graph read from it
0cells of the map it votes in
3citing papers in PubMed
–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

3 citing papers in PubMed.

  1. Article
  2. Mid-term performance of a unicompartmental knee prosthesis.Journal of experimental orthopaedics · 2026
    Article
  3. 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

8 authors.

David ZhuChirurgie Orthopédique Traumatologique et Arthroscopique COTA, Hôpital Central Centre Hospitalier Régional Universitaire de Nancy (CHRU) Nancy France.ORCID https://orcid.org/0000-0002-5432-2844
Regis PailheClinique Aguilera RAMSAY Santé Biarritz France.
Dany MouarbesCentre Hospitalier de Perpignan (CHP) Perpignan France.ORCID https://orcid.org/0000-0003-3404-862X
Ali AlayaneCentre Hospitalier de Perpignan (CHP) Perpignan France.ORCID https://orcid.org/0000-0002-0867-4275
Samy SaoudiClinique Universitaire du Sport, Service de Chirurgie orthopédique et traumatologique Centre Hospitalier Universitaire de Toulouse (CHU) Toulouse France.
Hasnae Ben-RoummaneResearch Methodological Support Unit (USMR), Department of Clinical Epidemiology and Public Health Toulouse University Hospital (CHU) Toulouse France.
Emilie BérardDepartment of Clinical Epidemiology and Public Health, CERPOP, INSERM-University of Toulouse III Toulouse University Hospital (CHU) Toulouse France.
Etienne CavaignacClinique Universitaire du Sport, Service de Chirurgie orthopédique et traumatologique Centre Hospitalier Universitaire de Toulouse (CHU) Toulouse France.

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

Purpose: The role of obesity in unicompartmental knee arthroplasty (UKA) outcomes remains debated. The aim of this study is to clarify the impact of obesity on revision rates and functional outcomes of UKA in a long-term follow-up. The hypothesis was that body mass index and weight do not significantly affect the long-term survival of UKAs. Methods: A retrospective study was conducted on 143 UKAs performed over a 16-year period. Patients were stratified by BMI (<30 vs. ≥30 kg/m²) and weight (<82 vs. ≥82 kg). Kaplan-Meier survivorship analysis assessed the 16-year survival rates across subgroups. Results: The 16-year survival rates were comparable in the BMI subgroups (≥30 kg/m²: 78% (95% confidence interval [CI]: 60-88); <30 kg/m²: 84% [95% CI: 75-90]; Conclusions: This study confirms that BMI and weight do not significantly influence the long-term survival or functional outcomes of UKA, supporting its use in obese patients when appropriately indicated. Level of Evidence: Level IV, retrospective case series.

Indexed as

arthroplastyclinical outcomeobesitysurvivalUKA

Identifiers

PMID40933186
PMCPMC12418358

What OpenQuestion holds

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Registered trials

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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.