Evidence map›Paper›PMID 42436609›Full record

ArticleJournal of orthopaedic research : official publication of the Orthopaedic Research Society2026

Combining Anterior Talofibular Ligament Ultrasonography With Anterior Drawer Displacement Refines Stratification of Chronic Ankle Instability.

Takumi Kobayashi, Yuta Koshino, Atsushi Teramoto

Abstract read
In one paragraph

Article in Journal of orthopaedic research : official publication of the Orthopaedic Research Society, 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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0citing papers in PubMed
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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

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

3 authors.

Takumi KobayashiDepartment of Rehabilitation Sciences, Graduate School of Health Sciences, Gunma University, Maebashi, Gunma, Japan.
Yuta KoshinoFaculty of Health Sciences, Hokkaido University, Sapporo, Hokkaido, Japan.
Atsushi TeramotoDepartment of Orthopaedic Surgery, Sapporo Medical University School of Medicine, Sapporo, Hokkaido, Japan.

Funding

Japan Society for the Promotion of Science 23K10511
6 · The paper itself

Abstract

Chronic ankle instability (CAI) is commonly defined using symptom-based criteria, but these do not explicitly incorporate structural instability after lateral ankle sprain. Whether ATFL findings and anterior displacement reflect symptoms and function remains unclear. This study examined the relationships among ATFL ultrasonography findings, anterior ankle displacement, perceived ankle instability, and self-reported function. This cross-sectional study included 187 participants classified as healthy, coper, or CAI using International Ankle Consortium criteria and the Cumberland Ankle Instability Tool (CAIT). ATFL ultrasonographic classification and instrumented anterior displacement were assessed by blinded examiners. Self-reported function was assessed using the Foot and Ankle Ability Measure (FAAM) in a subsample. Five groups defined by symptom classification and ATFL ultrasonographic classification were compared. Median anterior ankle displacement was 5.25, 5.63, 7.49, 6.14, and 9.02 mm in the healthy-ATFL normal, coper-ATFL normal, coper-ATFL abnormal, CAI-ATFL normal, and CAI-ATFL abnormal groups, respectively. Displacement was greater in the coper-ATFL abnormal and CAI-ATFL abnormal groups than in the healthy-ATFL normal and coper-ATFL normal groups (all p ≤ 0.004). The CAI-ATFL abnormal group also showed greater displacement than the CAI-ATFL normal group (p = 0.012). CAIT scores did not differ between CAI subgroups. In the FAAM subsample, the CAI-ATFL abnormal group had lower scores than several comparison groups. Section Specialty Area: Section IV: Sports Medicine & Orthopaedics. Investigation performed: Hokkaido Chitose College of Rehabilitation. ATFL ultrasonography stratified anterior ankle displacement within symptom-defined coper and CAI groups, whereas symptom-defined classification and self-reported function did not consistently reflect structural and mechanical findings. Structural assessment may refine phenotypic stratification in CAI research.

Indexed as

Ankle InjuriesAnkle JointJoint InstabilityLateral Ligament, AnkleAdolescentAdultChronic DiseaseCross-Sectional StudiesFemaleHumansMaleUltrasonographyYoung Adultankle sprainchronic ankle instabilityligament injuryrehabilitationsports injuryultrasonography

Identifiers

PMID42436609
PMCPMC13356565

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.