{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2026,7,16]],"date-time":"2026-07-16T05:04:37Z","timestamp":1784178277059,"version":"3.55.0"},"reference-count":30,"publisher":"Wiley","issue":"7","license":[{"start":{"date-parts":[[2026,7,11]],"date-time":"2026-07-11T00:00:00Z","timestamp":1783728000000},"content-version":"vor","delay-in-days":10,"URL":"http:\/\/creativecommons.org\/licenses\/by-nc-nd\/4.0\/"},{"start":{"date-parts":[[2026,7,1]],"date-time":"2026-07-01T00:00:00Z","timestamp":1782864000000},"content-version":"tdm","delay-in-days":0,"URL":"http:\/\/doi.wiley.com\/10.1002\/tdm_license_1.1"}],"funder":[{"DOI":"10.13039\/501100001691","name":"Japan Society for the Promotion of Science","doi-asserted-by":"publisher","award":["23K10511"],"award-info":[{"award-number":["23K10511"]}],"id":[{"id":"10.13039\/501100001691","id-type":"DOI","asserted-by":"publisher"}]}],"content-domain":{"domain":["onlinelibrary.wiley.com"],"crossmark-restriction":true},"short-container-title":["Journal Orthopaedic Research"],"published-print":{"date-parts":[[2026,7]]},"abstract":"<jats:title>ABSTRACT<\/jats:title>\n                  <jats:p>\n                    Chronic ankle instability (CAI) is commonly defined using symptom\u2010based 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\u2010reported function. This cross\u2010sectional 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\u2010reported 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\u2009mm in the healthy\u2010ATFL normal, coper\u2010ATFL normal, coper\u2010ATFL abnormal, CAI\u2010ATFL normal, and CAI\u2010ATFL abnormal groups, respectively. Displacement was greater in the coper\u2010ATFL abnormal and CAI\u2010ATFL abnormal groups than in the healthy\u2010ATFL normal and coper\u2010ATFL normal groups (all\n                    <jats:italic>p<\/jats:italic>\n                    \u2009\u2264\u20090.004). The CAI\u2010ATFL abnormal group also showed greater displacement than the CAI\u2010ATFL normal group (\n                    <jats:italic>p<\/jats:italic>\n                    \u2009=\u20090.012). CAIT scores did not differ between CAI subgroups. In the FAAM subsample, the CAI\u2010ATFL abnormal group had lower scores than several comparison groups. Section Specialty Area: Section IV: Sports Medicine &amp; Orthopaedics. Investigation performed: Hokkaido Chitose College of Rehabilitation. ATFL ultrasonography stratified anterior ankle displacement within symptom\u2010defined coper and CAI groups, whereas symptom\u2010defined classification and self\u2010reported function did not consistently reflect structural and mechanical findings. Structural assessment may refine phenotypic stratification in CAI research.\n                  <\/jats:p>","DOI":"10.1002\/jor.70248","type":"journal-article","created":{"date-parts":[[2026,7,12]],"date-time":"2026-07-12T06:40:32Z","timestamp":1783838432000},"update-policy":"https:\/\/doi.org\/10.1002\/crossmark_policy","source":"Crossref","is-referenced-by-count":0,"title":["Combining Anterior Talofibular Ligament Ultrasonography With Anterior Drawer Displacement Refines Stratification of Chronic Ankle Instability"],"prefix":"10.1002","volume":"44","author":[{"given":"Takumi","family":"Kobayashi","sequence":"first","affiliation":[{"name":"Department of Rehabilitation Sciences, Graduate School of Health Sciences Gunma University Maebashi Gunma Japan"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Yuta","family":"Koshino","sequence":"additional","affiliation":[{"name":"Faculty of Health Sciences Hokkaido University Sapporo Hokkaido Japan"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Atsushi","family":"Teramoto","sequence":"additional","affiliation":[{"name":"Department of Orthopaedic Surgery Sapporo Medical University School of Medicine Sapporo Hokkaido Japan"}],"role":[{"vocabulary":"crossref","role":"author"}]}],"member":"311","published-online":{"date-parts":[[2026,7,11]]},"reference":[{"key":"e_1_2_9_2_1","doi-asserted-by":"publisher","DOI":"10.2165\/00007256-200737010-00006"},{"key":"e_1_2_9_3_1","doi-asserted-by":"publisher","DOI":"10.4085\/1062-6050-447-17"},{"key":"e_1_2_9_4_1","doi-asserted-by":"publisher","DOI":"10.1177\/0363546516628870"},{"key":"e_1_2_9_5_1","doi-asserted-by":"publisher","DOI":"10.1136\/bjsports-2013-093175"},{"key":"e_1_2_9_6_1","doi-asserted-by":"publisher","DOI":"10.4085\/1062-6050-344-18"},{"key":"e_1_2_9_7_1","doi-asserted-by":"publisher","DOI":"10.4085\/1062-6050-46.2.133"},{"key":"e_1_2_9_8_1","doi-asserted-by":"publisher","DOI":"10.2519\/jospt.2014.5217"},{"key":"e_1_2_9_9_1","doi-asserted-by":"publisher","DOI":"10.1016\/j.apmr.2010.04.022"},{"key":"e_1_2_9_10_1","doi-asserted-by":"publisher","DOI":"10.1016\/j.apmr.2022.10.014"},{"key":"e_1_2_9_11_1","doi-asserted-by":"publisher","DOI":"10.1123\/jsr.2021-0015"},{"key":"e_1_2_9_12_1","doi-asserted-by":"publisher","DOI":"10.1016\/j.foot.2021.101902"},{"key":"e_1_2_9_13_1","doi-asserted-by":"publisher","DOI":"10.1016\/j.ptsp.2023.02.008"},{"key":"e_1_2_9_14_1","doi-asserted-by":"publisher","DOI":"10.1186\/s12891-021-04537-6"},{"key":"e_1_2_9_15_1","doi-asserted-by":"publisher","DOI":"10.2519\/jospt.2013.4679"},{"key":"e_1_2_9_16_1","doi-asserted-by":"publisher","DOI":"10.2519\/jospt.2012.3923"},{"key":"e_1_2_9_17_1","doi-asserted-by":"publisher","DOI":"10.3758\/bf03193146"},{"key":"e_1_2_9_18_1","doi-asserted-by":"publisher","DOI":"10.1007\/s40279-013-0111-4"},{"key":"e_1_2_9_19_1","doi-asserted-by":"publisher","DOI":"10.4085\/1062-6050-0582.23"},{"key":"e_1_2_9_20_1","doi-asserted-by":"publisher","DOI":"10.1177\/1071100721996714"},{"key":"e_1_2_9_21_1","doi-asserted-by":"publisher","DOI":"10.3109\/09638288.2016.1138555"},{"key":"e_1_2_9_22_1","doi-asserted-by":"publisher","DOI":"10.4085\/1062-6050-49.3.42"},{"key":"e_1_2_9_23_1","volume-title":"Statistical Power Analysis for the Behavioral Sciences","author":"Cohen J.","year":"1988"},{"key":"e_1_2_9_24_1","doi-asserted-by":"publisher","DOI":"10.1007\/s00167-013-2690-x"},{"issue":"3","key":"e_1_2_9_25_1","first-page":"361","article-title":"Correlations Among Multiple Measures of Functional and Mechanical Instability in Subjects With Chronic Ankle Instability","volume":"42","author":"Hubbard T. 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