{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2025,6,23]],"date-time":"2025-06-23T23:40:10Z","timestamp":1750722010111,"version":"3.41.0"},"reference-count":30,"publisher":"Georg Thieme Verlag KG","issue":"02","license":[{"start":{"date-parts":[[2025,6,23]],"date-time":"2025-06-23T00:00:00Z","timestamp":1750636800000},"content-version":"vor","delay-in-days":83,"URL":"https:\/\/creativecommons.org\/licenses\/by\/4.0\/"}],"content-domain":{"domain":[],"crossmark-restriction":false},"short-container-title":["Rev Bras Ortop (Sao Paulo)"],"published-print":{"date-parts":[[2025,4]]},"abstract":"<jats:title>Abstract<\/jats:title><jats:p>To describe a new sign on magnetic resonance imaging (MRI) axial images of patients with bucket-handle meniscal tears.<\/jats:p><jats:p>Of 610 consecutive patients with a surgical diagnosis of meniscal tear, those with a bucket-handle pattern were chosen, and 28 met the inclusion criteria. The most frequent mechanism was a twisting injury with or without a coronal stress (16 patients), and the injury was sports-related in 12 cases. All patients were symptomatic and had X-rays showing a preserved joint line. Next, their MRI examinations were analyzed.<\/jats:p><jats:p>The buffalo horn pattern was found in 13 patients (46.4%), occurring in either the medial or the lateral meniscus. It was the 3rd most prevalent sign, after the fragment within the intercondylar notch (n\u2009=\u200921; 75.0%) and the absent bow tie sign (n\u2009=\u200917; 60.7%). We observed that it had a significant association with other signs of displaced meniscal handle. The sign was neither found on the healthy menisci, nor was affected by the occurrence of an anterior cruciate ligament tear.<\/jats:p><jats:p>The buffalo horn is a new finding for displaced meniscal bucket-handle tears; it is easy to identify and relevant in the interpretation of axial MRI images. Its recognition is very important to determine the type of treatment and the surgical plan.<\/jats:p>","DOI":"10.1055\/s-0045-1809336","type":"journal-article","created":{"date-parts":[[2025,6,23]],"date-time":"2025-06-23T23:23:09Z","timestamp":1750720989000},"page":"001-010","source":"Crossref","is-referenced-by-count":0,"title":["Buffalo Horn Sign \u2013 A New Finding on MRI for Meniscal Bucket-Handle Tears"],"prefix":"10.1055","volume":"60","author":[{"ORCID":"https:\/\/orcid.org\/0000-0002-6655-2073","authenticated-orcid":false,"given":"Rafael R.","family":"Pereira","sequence":"additional","affiliation":[{"name":"Orthopedics Service, Unidade Local de Sa\u00fade Santa Maria, Lisbon, Portugal"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"ORCID":"https:\/\/orcid.org\/0000-0003-2423-4023","authenticated-orcid":false,"given":"Jo\u00e3o","family":"Cabral","sequence":"additional","affiliation":[{"name":"Knee and Ankle Surgery Unit, Centro de Ortopedia e Traumatologia, Hospital CUF Descobertas, Lisbon, Portugal"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"ORCID":"https:\/\/orcid.org\/0000-0002-0198-3542","authenticated-orcid":false,"given":"Jo\u00e3o","family":"Janeiro","sequence":"additional","affiliation":[{"name":"Radiology Service, Unidade Local de Sa\u00fade Santa Maria, Lisbon, Portugal"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"ORCID":"https:\/\/orcid.org\/0009-0004-8435-2819","authenticated-orcid":false,"given":"Jos\u00e9","family":"Pad\u00edn","sequence":"additional","affiliation":[{"name":"Orthopedics Service, Unidade Local de Sa\u00fade Santa Maria, Lisbon, Portugal"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"ORCID":"https:\/\/orcid.org\/0000-0003-0132-7526","authenticated-orcid":false,"given":"Joaquim Soares do","family":"Brito","sequence":"additional","affiliation":[{"name":"Orthopedics Service, Unidade Local de Sa\u00fade Santa Maria, Lisbon, Portugal"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"ORCID":"https:\/\/orcid.org\/0000-0002-1209-4425","authenticated-orcid":false,"given":"Rodrigo A.","family":"Goes","sequence":"additional","affiliation":[{"name":"School of Medicine, Universidade de Lisboa, Lisbon, Portugal"}],"role":[{"role":"author","vocabulary":"crossref"}]}],"member":"194","published-online":{"date-parts":[[2025,6,23]]},"reference":[{"issue":"12","key":"ref1","doi-asserted-by":"publisher","first-page":"1121","DOI":"10.1007\/s00167-008-0616-9","article-title":"Biomechanics of the meniscus-meniscal ligament construct of the knee","volume":"16","author":"S D Masouros","year":"2008","journal-title":"Knee Surg Sports Traumatol Arthrosc"},{"issue":"01","key":"ref2","doi-asserted-by":"publisher","first-page":"1","DOI":"10.1177\/036354658501300101","article-title":"Review of meniscal injury and associated sports","volume":"13","author":"B E Baker","year":"1985","journal-title":"Am J Sports Med"},{"issue":"04","key":"ref3","doi-asserted-by":"publisher","first-page":"383","DOI":"10.1302\/0301-620X.65B4.6874707","article-title":"The bucket-handle tear of the meniscus. 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