Evidence map›Paper›PMID 42747570›Full record

ArticleInternational orthopaedics2026

Association between pre-operative body mass index and post-operative decline in activities of daily living in patients with total knee arthroplasty.

Hiroki Matsumoto, Shunya Mimatsu, Iwao Kojima, Yusuke Terao, Shu Tanaka, Hiroki Saegusa, Kohei Okawa, Miho Nambu, Masaya Saito, Shiho Soma and 4 more

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Article in International orthopaedics, 2026. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Not yet cited in PubMed.

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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

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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

0 citing papers in PubMed.

No citing paper in PubMed yet.

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

14 authors.

Hiroki MatsumotoDepartment of Rehabilitation Medicine, Kawasaki Municipal Kawasaki Hospital, Kanagawa, Japan. h_matsumoto.14@outlook.jp.ORCID https://orcid.org/0009-0000-5075-5565
Shunya MimatsuGraduate School of Comprehensive Human Sciences, University of Tsukuba, Tokyo, Japan.ORCID https://orcid.org/0009-0000-9849-0770
Iwao KojimaGraduate School of Comprehensive Human Sciences, University of Tsukuba, Tokyo, Japan.
Yusuke TeraoGraduate School of Comprehensive Human Sciences, University of Tsukuba, Tokyo, Japan.
Shu TanakaGraduate School of Comprehensive Human Sciences, University of Tsukuba, Tokyo, Japan.
Hiroki SaegusaGraduate School of Comprehensive Human Sciences, University of Tsukuba, Tokyo, Japan.
Kohei OkawaGraduate School of Comprehensive Human Sciences, University of Tsukuba, Tokyo, Japan.
Miho NambuGraduate School of Comprehensive Human Sciences, University of Tsukuba, Tokyo, Japan.
Masaya SaitoGraduate School of Comprehensive Human Sciences, University of Tsukuba, Tokyo, Japan.
Shiho SomaGraduate School of Comprehensive Human Sciences, University of Tsukuba, Tokyo, Japan.
Naoto HagaGraduate School of Comprehensive Human Sciences, University of Tsukuba, Tokyo, Japan.
Koichiro KomiyaDepartment of Orthopedic Surgery, Kawasaki Municipal Kawasaki Hospital, Kanagawa, Japan.
Goro ShinjoDepartment of Rehabilitation Medicine, Kawasaki Municipal Kawasaki Hospital, Kanagawa, Japan.
Minoru YamadaFaculty of Human Sciences, University of Tsukuba, Tokyo, Japan.

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

purposeIt is well established that total knee arthroplasty (TKA) yields favourable outcomes, including pain reduction, improved physical function, and improved activities of daily living (ADL). However, some patients may experience limited post-operative ADL, potentially influenced by obesity. This study aimed to examine the relationship between decline in ADL ability and pre-operative body mass index (BMI) during hospitalization.

methodsThis retrospective cohort study included 201 patients with TKA. The outcome measure was post-operative ADL ability, assessed using the Barthel Index (BI).

resultsThe percentage of patients with reduced ADL was 26.9%. In the unadjusted model, a higher pre-operative BMI was significantly associated with greater odds of a decline in BI (OR 1.09, 95% CI 1.01-1.18, P = 0.020). This association remained significant after adjustment for age, sex, CCI, and KL classification (adjusted OR 1.12, 95% CI 1.03-1.22, P = 0.009).

conclusionWe found that post-operative ADL limitations were more pronounced in patients with a higher pre-operative BMI.

Indexed as

Activities of daily livingBody mass indexKnee osteoarthritis pre-operativeOlder patientsTotal knee arthroplasty

Identifiers

PMID42747570

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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.