Evidence map›Paper›PMID 28592232›Full record

ArticleBMC musculoskeletal disorders2017

Association of frontal plane knee alignment with foot posture in patients with medial knee osteoarthritis.

Hiroshi Ohi, Hirotaka Iijima, Tomoki Aoyama, Eishi Kaneda, Kazuko Ohi, Kaoru Abe

Abstract read
In one paragraph

Article in BMC musculoskeletal disorders, 2017. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 27 papers, 1 of them a synthesis that pooled it.

0numbers the graph read from it
0cells of the map it votes in
27citing papers in PubMed, 1 pooled it
–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

27 citing papers in PubMed, 1 synthesis or guideline pooled it.

  1. Pooled it
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  4. Sexual Dimorphism in Clinical Manifestations of Knee Osteoarthritis.Medicine and science in sports and exercise · 2026
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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.

Hiroshi OhiGraduate School of Health and Welfare, Niigata University of Health and Welfare, Niigata, Japan.
Hirotaka IijimaDepartment of Physical Therapy, Human Health Sciences, Graduate School of Medicine, Kyoto University, Kyoto, Japan. iijima.hirotaka.4m@yt.sd.keio.ac.jp.
Tomoki AoyamaDepartment of Physical Therapy, Human Health Sciences, Graduate School of Medicine, Kyoto University, Kyoto, Japan.
Eishi KanedaNozomi Orthopaedic Clinic, Hiroshima, Japan.
Kazuko OhiGraduate School of Health and Welfare, Niigata University of Health and Welfare, Niigata, Japan.
Kaoru AbeGraduate School of Health and Welfare, Niigata University of Health and Welfare, Niigata, Japan.

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

backgroundTo examine the association of radiographic frontal plane knee alignment with three-dimensional foot posture in patients with medial knee osteoarthritis (OA).

methodsParticipants in orthopedic clinics with Kellgren/Lawrence (K/L) grade ≥1 (88 patients and 88 knees; age, 61-91 years; 65.9% female) were enrolled. An anteroposterior radiographic view was used to assess the anatomical axis angle (AAA) after subtracting a sex-specific correction factor. The three-dimensional foot posture was also evaluated.

resultsMultiple regression analyses showed that increased corrected AAA (i.e., valgus direction) was independently associated with a decrease in the hallux valgus angle (regression coefficient: -0.40 per degree, 95% confidence interval [CI]: -0.72, -0.09; P = 0.013) and increase in the pronation angle of the calcaneus relative to floor (regression coefficient: 0.33 per degree, 95% CI: 0.10, 0.56; P = 0.005) adjusted for age, sex, and body mass index. The relationship between the corrected AAA and hallux valgus angle strengthened (regression coefficient: -0.60 per degree, 95% CI: -1.08, -0.13; P = 0.014) in varus-aligned knees examined separately (63 knees). The other foot postures (navicular height, navicular height/foot length, and rearfoot angle) were not significantly associated with corrected AAA.

conclusionsRadiographic frontal plane knee alignment was associated with hallux valgus angle and calcaneus angle relative to the floor in patients with medial knee OA, particularly in varus-aligned knees. These results indicate a connection between altered frontal knee alignment and foot posture, which may be helpful in understanding the pathogenesis of altered foot posture observed in patients with knee OA.

Indexed as

AgedAged, 80 and overCross-Sectional StudiesFemaleFootHumansKnee JointMaleMiddle AgedOsteoarthritis, KneePostureAnatomical alignmentFoot postureHallux valgusOsteoarthritis

Identifiers

PMID28592232
PMCPMC5463360

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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.