Evidence map›Paper›PMID 41269019›Full record

ArticleOrthopaedic surgery2026

Comparison of Fat-to-Muscle Ratio and Body Mass Index in Predicting Perioperative Complications and Functional Recovery After Total Knee Arthroplasty: A Prospective Cohort Study.

Long Zhao, Liqun Wang, Duan Wang, Haoyang Wang, Jiali Chen, Zongke Zhou

Abstract readComparative Study
PubMed Full text at PMC Publisher
In one paragraph

Article in Orthopaedic surgery, 2026. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 1 paper.

0numbers the graph read from it
0cells of the map it votes in
1citing papers in PubMed
–field-weighted citation impact
1 · What the graph read from it

What it found

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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

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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

1 citing paper in PubMed.

  1. 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

6 authors.

Long ZhaoDepartment of Orthopedics and Orthopedic Research Institute, West China Hospital, Sichuan University, Chengdu, China.
Liqun WangDepartment of Orthopedics and Orthopedic Research Institute, West China Hospital, Sichuan University, Chengdu, China.
Duan WangDepartment of Orthopedics and Orthopedic Research Institute, West China Hospital, Sichuan University, Chengdu, China.
Haoyang WangDepartment of Orthopedics and Orthopedic Research Institute, West China Hospital, Sichuan University, Chengdu, China.
Jiali ChenDepartment of Orthopedics and Orthopedic Research Institute, West China Hospital, Sichuan University, Chengdu, China.
Zongke ZhouDepartment of Orthopedics and Orthopedic Research Institute, West China Hospital, Sichuan University, Chengdu, China.ORCID https://orcid.org/0000-0002-9037-4756

Funding

1.3.5 project for disciplines of excellence, West China Hospital, Sichuan University No. ZYGD23033National Key Research and Development Program of China 2022YFC2503100National Key Research and Development Program of China 2022YFC2503103National Key Research and Development Program of China 2022YFC2503104
6 · The paper itself

Abstract

objectivesObesity significantly influences the future of total knee arthroplasty (TKA). However, body mass index (BMI), the prevailing proxy for obesity, has limited predictive value for TKA outcomes, necessitating a more accurate obesity indicator. This study aimed to assess the utility of the fat-to-muscle ratio (FMR) in predicting postoperative outcomes related to obesity in patients undergoing TKA and compared its predictive value with that of BMI.

methodsAfter excluding patients with secondary osteoarthritis, severe joint deformity, or neuromotor deficits, prospective data from 146 unilateral primary TKA patients were analyzed, including demographics, BMI, and systemic and leg-specific FMR. Primary outcomes included complications and 12-month patient-reported function (assessed using the University of California, Los Angeles [UCLA] activity scale and the Hospital for Special Surgery [HSS] score) and secondary outcomes including hospitalization length and surgery information were analyzed. Multivariable regression models were used to identify significant obesity-related predictors of outcomes, with linear regression employed for continuous outcomes (UCLA activity score, HSS score) and logistic regression for binary outcomes (complications).

resultsThe mean BMI was 28.6 ± 4.4 kg/m

conclusionsIn this single-center study, FMR demonstrated statistically stronger associations than BMI with both perioperative complications and 12-month functional outcomes following TKA. FMR assessment may provide incremental value for preoperative risk stratification and functional outcome prediction in elective TKA.

Indexed as

Adipose TissueArthroplasty, Replacement, KneeBody Mass IndexMuscle, SkeletalObesityPostoperative ComplicationsAgedFemaleHumansMaleMiddle AgedOsteoarthritis, KneePredictive Value of TestsProspective StudiesRecovery of Functionbody mass index (BMI)fat‐to‐muscle ratio (FMR)total knee arthroplasty (TKA)

Identifiers

PMID41269019
PMCPMC12796977

What Socratic holds

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LicenceCC BY
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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 Socratic graph.