Evidence map›Paper›PMID 42434316›Full record

ArticleOsteoarthritis and cartilage open2026

The impact of knee positioning on joint space width change: Data from the Osteoarthritis Initiative.

J T Crawmer, R Tang, A E Nelson, T Neogi, Y M Golightly, X Sun, E Bedrick, C K Kwoh, J Duryea

Abstract read
PubMed Full text at PMC Publisher
In one paragraph

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

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

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

9 authors.

J T CrawmerBrigham and Women's Hospital, Boston, MA, USA.
R TangUniversity of Arizona Arthritis Center, The University of Arizona College of Medicine - Tucson, Tucson, AZ, USA.
A E NelsonThurston Arthritis Research Center, The University of North Carolina at Chapel Hill, Chapel Hill, NC, USA.
T NeogiBoston University School of Medicine, Boston, MA, USA.
Y M GolightlyThurston Arthritis Research Center, The University of North Carolina at Chapel Hill, Chapel Hill, NC, USA.
X SunUniversity of Arizona Arthritis Center, The University of Arizona College of Medicine - Tucson, Tucson, AZ, USA.
E BedrickUniversity of Arizona Arthritis Center, The University of Arizona College of Medicine - Tucson, Tucson, AZ, USA.
C K KwohUniversity of Arizona Arthritis Center, The University of Arizona College of Medicine - Tucson, Tucson, AZ, USA.
J DuryeaBrigham and Women's Hospital, Boston, MA, USA.

Funding

Identifying determinants of rapid structural and/or clinical progression in knee osteoarthritis by quantitative assessment of structural features on radiographsR01AR080742 · NIAMS · UNIVERSITY OF ARIZONA · PI JEFFREY W DURYEA, C KENT KWOH · 2022 to 2026
$3.7M
Healthy knee aging vs. osteoarthritis in three large diverse cohorts: What is the clinical relevance of structural changes seen on radiographs?R01AR078187 · NIAMS · UNIVERSITY OF ARIZONA · PI DURYEA, JEFFREY W, KWOH, C KENT · 2021 to 2022
$2.4M
NIAMS NIH HHS R01 AR078187NIAMS NIH HHS R01 AR080742
6 · The paper itself

Abstract

Objective: Quantify the longitudinal effect of knee positioning on radiographic joint space width (JSW) in knee OA. Design: This longitudinal cohort study analyzed 1612 knees (806 participants) from the Osteoarthritis Initiative with baseline Kellgren-Lawrence grade = 0 and 12-month follow-up. Images obtained via a standardized fixed-flexion protocol measured minimum JSW (mJSW), fixed-location JSW (fJSW), and a variable related to knee positioning (X Results: GEE models showed a significant positive association between ΔXrim and both ΔfJSW (95% CI: 0.07-0.15) and ΔmJSW (95% CI: 0.05-0.13). The association between ΔX Conclusion: Inconsistent knee positioning affects JSW measurement. Poor but consistent positioning has a minimal effect on fJSW responsiveness but a larger impact on mJSW.

Identifiers

PMID42434316
PMCPMC13352047

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.