Evidence map›Paper›PMID 33661386›Full record

ArticleArchives of orthopaedic and trauma surgery2022

The influence of obesity on achievement of a 'forgotten joint' following total knee arthroplasty.

Vivek Singh, David Yeroushalmi, Katherine A Lygrisse, Trevor Simcox, William J Long, Ran Schwarzkopf

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In one paragraph

Article in Archives of orthopaedic and trauma surgery, 2022. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 9 papers.

0numbers the graph read from it
0cells of the map it votes in
9citing papers in PubMed
2.3field-weighted citation impact, top 12% 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

9 citing papers in PubMed, 16 citations in OpenAlex.

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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 at 2 institutions in 1 country.

Vivek SinghDepartment of Orthopedic Surgery, NYU Langone Health, 301 East 17th Street, New York, NY, 10003, USA.ORCID http://orcid.org/0000-0003-2450-1785
David YeroushalmiDepartment of Orthopedic Surgery, NYU Langone Health, 301 East 17th Street, New York, NY, 10003, USA.
Katherine A LygrisseDepartment of Orthopedic Surgery, NYU Langone Health, 301 East 17th Street, New York, NY, 10003, USA.
Trevor SimcoxDepartment of Orthopedic Surgery, NYU Langone Hospital Long Island, 259 1st St, Mineola, NY, 11501, USA.
William J LongDepartment of Orthopedic Surgery, NYU Langone Health, 301 East 17th Street, New York, NY, 10003, USA.
Ran SchwarzkopfDepartment of Orthopedic Surgery, NYU Langone Health, 301 East 17th Street, New York, NY, 10003, USA. Ran.Schwarzkopf@nyulangone.org.
NYU Langone Health · USIsland Hospital · US

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

introductionObesity has been associated with poorer outcomes following total knee arthroplasty (TKA); however, data remain sparse on its impact on patients' joint awareness following surgery. This study aims to investigate the impact of body mass index (BMI) on improvement in outcomes following TKA as assessed by the Forgotten Joint Score-12 (FJS-12). MATERIALS AND

methodsWe retrospectively reviewed 1075 patients who underwent primary TKA from 2017 to 2020 with available postoperative FJS-12 scores. Patients were stratified based on their BMI (kg/m

resultsOf the 1075 patients included, there were 457 with a BMI < 30, 331 who were obese class I, 162 obese class II, and 125 obese class III. There were no statistical differences in FJS-12 scores between the BMI groups at 3 months (27.24 vs. 25.33 vs. 23.57 vs. 22.48; p = 0.99), 1 year (45.07 vs. 41.86 vs. 40.51 vs. 36.22; p = 0.92) and 2 years (51.31 vs. 52.86 vs. 46.17 vs. 44.97; p = 0.94). Preoperative KOOS, JR scores significantly differed between the various BMI categories (49.33 vs. 46.63 vs. 44.24 vs. 39.33; p < 0.01); however, 3-month (p = 0.20) and 1-year (p = 0.13) scores were not statistically significant. Mean improvement in FJS-12 scores from 3 months to 2 years was statistically greatest for obese class I patients and lowest for obese class III patients (24.07 vs. 27.53 vs. 22.60 vs. 22.49; p = 0.01). KOOS, JR score improvement from baseline to 1 year was statistically greatest for obese class III patients and lowest for non-obese patients (22.34 vs. 25.49 vs. 23.77 vs. 27.58; p < 0.01).

conclusionWhile all groups demonstrated postoperative improvement, those with higher BMI reported lower mean FJS-12 scores but these differences were not found to be significant. Our study showed no significant impact of BMI on postoperative joint awareness, which implies that obese patients, in all obesity classes, experience similar functional improvement following TKA. LEVEL III EVIDENCE: Retrospective Cohort Study.

Indexed as

Arthroplasty, Replacement, KneeOsteoarthritis, KneeHumansKnee JointObesityPatient Reported Outcome MeasuresRetrospective StudiesTreatment OutcomeForgotten joint scoreObesityPatient-reported outcome measuresTotal knee arthroplastyTotal knee replacement

Identifiers

PMID33661386
OpenAlexW3133837724

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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.