{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2026,8,17]],"date-time":"2026-08-17T23:27:03Z","timestamp":1787009223022,"version":"build-2736575974"},"reference-count":27,"publisher":"Georg Thieme Verlag KG","content-domain":{"domain":[],"crossmark-restriction":false},"short-container-title":["Z Orthop Unfall"],"abstract":"<jats:title>Abstract<\/jats:title>\n                  <jats:p>Osteoid osteoma is a benign but painful bone tumour that typically occurs in the\n\t\t\t\tlong bones of young adults. Intra-articular localisation in the trochlea tali is\n\t\t\t\trare and may significantly delay diagnosis.<\/jats:p>\n                  <jats:p>We report the case of a 41-year-old patient presenting with persistent,\n\t\t\t\tpredominantly nocturnal pain of the right ankle joint, despite previous arthroscopic\n\t\t\t\ttreatment of an osteochondral lesion. Initial conventional imaging was unremarkable.\n\t\t\t\tThe diagnosis of an osteoid osteoma of the trochlea tali was established only after\n\t\t\t\ttargeted re-evaluation using contrast-enhanced magnetic resonance imaging (MRI) and\n\t\t\t\thigh-resolution computed tomography (CT). A diagnostic trial with acetylsalicylic\n\t\t\t\tacid resulted in marked symptom relief and further supported the suspected\n\t\t\t\tdiagnosis, consistent with the known NSAID sensitivity of osteoid osteoma.\n\t\t\t\tDefinitive treatment was performed using CT-guided radiofrequency ablation (RFA).\n\t\t\t\tThe patient was completely symptom-free four weeks after the intervention.<\/jats:p>\n                  <jats:p>This case highlights the diagnostic challenges of intra-articular osteoid osteomas\n\t\t\t\tin atypical locations. Careful clinical assessment, appropriate imaging, and\n\t\t\t\tinterdisciplinary collaboration are essential for timely diagnosis and successful\n\t\t\t\ttreatment.<\/jats:p>","DOI":"10.1055\/a-2913-1640","type":"journal-article","created":{"date-parts":[[2026,8,17]],"date-time":"2026-08-17T23:01:17Z","timestamp":1787007677000},"source":"Crossref","is-referenced-by-count":0,"title":["Osteoid Osteoma of the Trochlea Tali: A Rare Cause of Treatment-resistant Ankle Pain"],"prefix":"10.1055","author":[{"ORCID":"https:\/\/orcid.org\/0009-0009-0693-5281","authenticated-orcid":false,"given":"Ann-Sophie Clara","family":"Weigel","sequence":"additional","affiliation":[{"name":"Universit\u00e4tsklinikum M\u00fcnster, Deutschland","place":["M\u00fcnster"],"department":["Klinik f\u00fcr Unfall-, Hand- und Wiederherstellungschirurgie"]}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Max","family":"Masthoff","sequence":"additional","affiliation":[{"name":"Universit\u00e4tsklinikum M\u00fcnster, Deutschland","place":["M\u00fcnster"],"department":["Klinik f\u00fcr Radiologie"]}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Alexander","family":"Milstrey","sequence":"additional","affiliation":[{"name":"Universit\u00e4tsklinikum M\u00fcnster, Deutschland","place":["M\u00fcnster"],"department":["Klinik f\u00fcr Unfall-, Hand- und Wiederherstellungschirurgie"]}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Klemens","family":"Horst","sequence":"additional","affiliation":[{"name":"Universit\u00e4tsklinikum M\u00fcnster, Deutschland","place":["M\u00fcnster"],"department":["Klinik f\u00fcr Unfall-, Hand- und Wiederherstellungschirurgie"]}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Sabine","family":"Ochman","sequence":"additional","affiliation":[{"name":"Universit\u00e4tsklinikum M\u00fcnster, Deutschland","place":["M\u00fcnster"],"department":["Klinik f\u00fcr Unfall-, Hand- und Wiederherstellungschirurgie"]}],"role":[{"vocabulary":"crossref","role":"author"}]}],"member":"194","published-online":{"date-parts":[[2026,8,17]]},"reference":[{"key":"ref1","doi-asserted-by":"publisher","first-page":"228","DOI":"10.1016\/j.fas.2015.04.005","article-title":"Osteoid osteoma of the foot and ankle. 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