{"id":17002,"date":"2025-07-03T09:48:56","date_gmt":"2025-07-03T07:48:56","guid":{"rendered":"https:\/\/preview.centre-assal.ch\/?post_type=publications&p=17002"},"modified":"2026-06-24T14:24:44","modified_gmt":"2026-06-24T12:24:44","slug":"a-game-changing-tool-in-the-assessment-of-foot-first-ray-laxity-a-clinical-reliability-study","status":"publish","type":"publications","link":"https:\/\/centre-assal.ch\/en\/publications\/a-game-changing-tool-in-the-assessment-of-foot-first-ray-laxity-a-clinical-reliability-study\/","title":{"rendered":"A game changing tool in the assessment of foot first ray laxity. A clinical reliability study"},"content":{"rendered":"

Background: <\/strong>Excessive laxity of the first ray has been implicated in various foot disorders. Accurate assessment is critical to define the most appropriate treatment. However, assessment currently depends largely on clinical examination and lacks objectivity. We evaluated the performance of an automated electromechanical tool developed to measure the relative dorsal mobility of the medial column compared to the lateral rays, and assessed the intra- and inter-examiner reliability of this device.<\/p>\n

Methods:<\/strong> Two examiners assessed 30 feet of 17 volunteers. Data were collected 15 times on each foot. The intraclass correlation coefficient (ICC), Bland-Altman (B&A) graphical analysis, and the standard error of measurement (SEM) were calculated.<\/p>\n

Results:<\/strong> Inter-rater and intra-rater ICC values (>0.9) were excellent. The Bland-Altman analysis revealed a mean bias of 0.07\u202fmm between examiners.<\/p>\n

Conclusion:<\/strong> This novel electromechanical device has demonstrated reliability in measuring first ray laxity, supporting its use in future studies aimed at quantifying first ray hyperlaxity.<\/p>\n

Level of evidence:<\/strong> Level II, Prospective Reliability Study.<\/p>","protected":false},"featured_media":0,"template":"","categorie_publications":[89],"class_list":["post-17002","publications","type-publications","status-publish","hentry","categorie_publications-article-scientifique"],"acf":[],"yoast_head":"\nTool for Foot First Ray Laxity Study - Centre Assal<\/title>\n<meta name=\"description\" content=\"Clinical reliability study by Centre Assal assessing a game-changing tool for the evaluation of foot first ray laxity.\" \/>\n<meta name=\"robots\" content=\"index, follow, max-snippet:-1, max-image-preview:large, max-video-preview:-1\" \/>\n<link rel=\"canonical\" href=\"https:\/\/centre-assal.ch\/en\/publications\/a-game-changing-tool-in-the-assessment-of-foot-first-ray-laxity-a-clinical-reliability-study\/\" \/>\n<meta property=\"og:locale\" content=\"en_GB\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"Tool for Foot First Ray Laxity Study - Centre Assal\" \/>\n<meta property=\"og:description\" content=\"Clinical reliability study by Centre Assal assessing a game-changing tool for the evaluation of foot first ray laxity.\" \/>\n<meta property=\"og:url\" content=\"https:\/\/centre-assal.ch\/en\/publications\/a-game-changing-tool-in-the-assessment-of-foot-first-ray-laxity-a-clinical-reliability-study\/\" \/>\n<meta property=\"og:site_name\" content=\"Centre Assal\" \/>\n<meta property=\"article:modified_time\" content=\"2026-06-24T12:24:44+00:00\" \/>\n<meta name=\"twitter:card\" content=\"summary_large_image\" \/>\n<meta name=\"twitter:label1\" content=\"Estimated reading time\" \/>\n\t<meta name=\"twitter:data1\" content=\"1 minute\" \/>\n<script type=\"application\/ld+json\" class=\"yoast-schema-graph\">{\"@context\":\"https:\\\/\\\/schema.org\",\"@graph\":[{\"@type\":\"WebPage\",\"@id\":\"https:\\\/\\\/centre-assal.ch\\\/publications\\\/a-game-changing-tool-in-the-assessment-of-foot-first-ray-laxity-a-clinical-reliability-study\\\/\",\"url\":\"https:\\\/\\\/centre-assal.ch\\\/publications\\\/a-game-changing-tool-in-the-assessment-of-foot-first-ray-laxity-a-clinical-reliability-study\\\/\",\"name\":\"Tool for Foot First Ray Laxity Study - Centre Assal\",\"isPartOf\":{\"@id\":\"https:\\\/\\\/centre-assal.ch\\\/#website\"},\"datePublished\":\"2025-07-03T07:48:56+00:00\",\"dateModified\":\"2026-06-24T12:24:44+00:00\",\"description\":\"Clinical reliability study by Centre Assal assessing a game-changing tool for the evaluation of foot first ray laxity.\",\"breadcrumb\":{\"@id\":\"https:\\\/\\\/centre-assal.ch\\\/publications\\\/a-game-changing-tool-in-the-assessment-of-foot-first-ray-laxity-a-clinical-reliability-study\\\/#breadcrumb\"},\"inLanguage\":\"en-GB\",\"potentialAction\":[{\"@type\":\"ReadAction\",\"target\":[\"https:\\\/\\\/centre-assal.ch\\\/publications\\\/a-game-changing-tool-in-the-assessment-of-foot-first-ray-laxity-a-clinical-reliability-study\\\/\"]}]},{\"@type\":\"BreadcrumbList\",\"@id\":\"https:\\\/\\\/centre-assal.ch\\\/publications\\\/a-game-changing-tool-in-the-assessment-of-foot-first-ray-laxity-a-clinical-reliability-study\\\/#breadcrumb\",\"itemListElement\":[{\"@type\":\"ListItem\",\"position\":1,\"name\":\"Home\",\"item\":\"https:\\\/\\\/centre-assal.ch\\\/\"},{\"@type\":\"ListItem\",\"position\":2,\"name\":\"A game changing tool in the assessment of foot first ray laxity. 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