{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2025,12,3]],"date-time":"2025-12-03T23:37:26Z","timestamp":1764805046270,"version":"3.46.0"},"reference-count":57,"publisher":"Georg Thieme Verlag KG","issue":"06","content-domain":{"domain":[],"crossmark-restriction":false},"short-container-title":["Semin Musculoskelet Radiol"],"published-print":{"date-parts":[[2025,12]]},"abstract":"<jats:title>Abstract<\/jats:title>\n                  <jats:p>Disorders of the extensor mechanism of the wrist and hand are frequently encountered in clinical practice and observed more commonly than pathologies affecting the flexor system. When unrecognized or inadequately treated, these conditions may lead to substantial functional impairment and suboptimal clinical outcomes. Extensor tendon pathologies encompass a wide range of etiologies, such as repetitive overuse, acute trauma, inflammatory arthropathies, and degenerative tendinopathies. Accurate diagnosis depends on a thorough clinical evaluation, supported by high-resolution imaging. Ultrasound and magnetic resonance imaging are particularly useful for assessing tendon structure, surrounding soft tissues, and dynamic abnormalities. This review offers an updated overview of extensor tendon disorders of the wrist and fingers, focusing on their underlying causes and key imaging findings on magnetic resonance imaging and ultrasound to support an accurate and efficient diagnosis by radiologists.<\/jats:p>","DOI":"10.1055\/s-0045-1811588","type":"journal-article","created":{"date-parts":[[2025,12,3]],"date-time":"2025-12-03T23:33:57Z","timestamp":1764804837000},"page":"939-950","source":"Crossref","is-referenced-by-count":0,"title":["Lesions of the Extensor Tendons at the Hand"],"prefix":"10.1055","volume":"29","author":[{"ORCID":"https:\/\/orcid.org\/0000-0002-5322-4759","authenticated-orcid":false,"given":"Andrea B.","family":"Rosskopf","sequence":"additional","affiliation":[{"name":"Medical Radiological Institute (MRI) Zurich, Schulthess Clinic, Zurich, 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Taljanovic","year":"2015","journal-title":"Radiographics"},{"issue":"02","key":"ref41","doi-asserted-by":"crossref","first-page":"139","DOI":"10.1053\/j.otsm.2016.01.003","article-title":"Extensor carpi ulnaris instability in athletes\u2014diagnosis and treatment","volume":"24","author":"C RD Conroy","year":"2016","journal-title":"Oper Tech Sports Med"},{"issue":"17","key":"ref42","doi-asserted-by":"crossref","first-page":"1105","DOI":"10.1136\/bjsports-2013-092835","article-title":"Sports-related extensor carpi ulnaris pathology: a review of functional anatomy, sports injury and management","volume":"47","author":"D Campbell","year":"2013","journal-title":"Br J Sports Med"},{"issue":"01","key":"ref43","doi-asserted-by":"crossref","first-page":"160","DOI":"10.1007\/s00330-010-1887-3","article-title":"Athletic injuries of the extensor carpi ulnaris subsheath: MRI findings and utility of gadolinium-enhanced fat-saturated T1-weighted sequences with wrist pronation and supination","volume":"21","author":"J Jeantroux","year":"2011","journal-title":"Eur Radiol"},{"issue":"12","key":"ref44","doi-asserted-by":"crossref","first-page":"1735","DOI":"10.1007\/s00256-015-2224-3","article-title":"The extensor carpi ulnaris pseudolesion: evaluation with microCT, histology, and MRI","volume":"44","author":"S Ali","year":"2015","journal-title":"Skeletal Radiol"},{"issue":"03","key":"ref45","doi-asserted-by":"crossref","first-page":"651","DOI":"10.2214\/AJR.08.1725","article-title":"Ultrasound imaging of normal displacement of the extensor carpi ulnaris tendon within the ulnar groove in 12 forearm-wrist positions","volume":"193","author":"K S Lee","year":"2009","journal-title":"AJR Am J Roentgenol"},{"issue":"05","key":"ref46","doi-asserted-by":"crossref","first-page":"424","DOI":"10.1136\/bjsm.2005.023275","article-title":"Extensor carpi ulnaris injuries in tennis players: a study of 28 cases","volume":"40","author":"B Montalvan","year":"2006","journal-title":"Br J Sports Med"},{"issue":"05","key":"ref47","doi-asserted-by":"crossref","first-page":"3172","DOI":"10.1007\/s00330-023-09446-x","article-title":"Extensor carpi ulnaris tendon pathology and ulnar styloid bone marrow edema as diagnostic markers of peripheral triangular fibrocartilage complex tears on wrist MRI: a case-control study","volume":"33","author":"M T Nevalainen","year":"2023","journal-title":"Eur Radiol"},{"issue":"04","key":"ref48","doi-asserted-by":"crossref","first-page":"216","DOI":"10.1002\/ajum.12363","article-title":"Boxer's knuckle: sonographic anatomy and assessment of sagittal band tears of the dorsal hood","volume":"26","author":"M Fenech","year":"2023","journal-title":"Australas J Ultrasound Med"},{"issue":"02","key":"ref49","doi-asserted-by":"crossref","first-page":"278","DOI":"10.1016\/j.ejrad.2014.11.001","article-title":"Ultrasound follow-up of posttraumatic injuries of the sagittal band of the dorsal hood treated by a conservative 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