{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2026,10,18]],"date-time":"2026-10-18T14:20:49Z","timestamp":1792333249278,"version":"4.4.0"},"reference-count":23,"publisher":"Wiley","issue":"12","license":[{"start":{"date-parts":[[2012,11,15]],"date-time":"2012-11-15T00:00:00Z","timestamp":1352937600000},"content-version":"vor","delay-in-days":0,"URL":"http:\/\/onlinelibrary.wiley.com\/termsAndConditions#vor"}],"content-domain":{"domain":["onlinelibrary.wiley.com"],"crossmark-restriction":true},"short-container-title":["Colorectal Disease"],"published-print":{"date-parts":[[2012,12]]},"abstract":"<jats:title>Abstract<\/jats:title><jats:p><jats:bold>Aim\u2002<\/jats:bold> The aim of this study was to analyse the characteristics of horseshoe tract formation in anal fistula.<\/jats:p><jats:p><jats:bold>Method\u2002<\/jats:bold> We retrospectively analysed the data from all consecutive patients who underwent surgery for an anal fistula from November 2004 to March 2011. A horseshoe tract was defined as a circumferential extension connecting both sides of the anorectum.<\/jats:p><jats:p><jats:bold>Results\u2002<\/jats:bold> During the period of analysis, 1876 patients were operated on for a fistula. Of these, 82 (4.4%) had a horseshoe extension. The majority (72%) were male and the median age was 46 (17\u201384)\u2003years. The primary tract was high transsphincteric in 90% of cases and the primary opening was posterior in 65% of cases. The location of the horseshoe extension was posterior in 66% of cases with spread in the deep perianal space in 62%. In all, 71% were cryptoglandular and 24% were seen in Crohn\u2019s disease (20). Of the 62 non\u2010Crohn\u2019s patients previous treatment was common and included surgery (42), antibiotics alone (41) and non\u2010steroidal anti\u2010inflammatory drugs (21).<\/jats:p><jats:p><jats:bold>Conclusion\u2002<\/jats:bold> Horseshoe extension in anal fistula is uncommon. With Crohn\u2019s disease excepted, the majority had had previous treatment.<\/jats:p>","DOI":"10.1111\/j.1463-1318.2012.03034.x","type":"journal-article","created":{"date-parts":[[2012,3,24]],"date-time":"2012-03-24T12:42:48Z","timestamp":1332592968000},"page":"1512-1515","update-policy":"https:\/\/doi.org\/10.1002\/crossmark_policy","source":"Crossref","is-referenced-by-count":12,"title":["Horseshoe tract of anal fistula: bad luck or an avoidable extension? Lessons from 82 cases"],"prefix":"10.1111","volume":"14","author":[{"given":"V.","family":"de Parades","sequence":"first","affiliation":[],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"N.","family":"Fathallah","sequence":"additional","affiliation":[],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"P.","family":"Blanchard","sequence":"additional","affiliation":[],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"J.\u2010D.","family":"Zeitoun","sequence":"additional","affiliation":[],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"B.","family":"Bennadji","sequence":"additional","affiliation":[],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"P.","family":"Atienza","sequence":"additional","affiliation":[],"role":[{"vocabulary":"crossref","role":"author"}]}],"member":"311","published-online":{"date-parts":[[2012,11,15]]},"reference":[{"key":"e_1_2_7_2_2","doi-asserted-by":"crossref","first-page":"43","DOI":"10.1177\/014107688808100118","article-title":"Master John of Arderne \u2013 surgeon of Newark","volume":"81","author":"Beynon J","year":"1988","journal-title":"J R Soc Med"},{"key":"e_1_2_7_3_2","doi-asserted-by":"publisher","DOI":"10.1111\/j.1463-1318.2007.01372.x"},{"key":"e_1_2_7_4_2","doi-asserted-by":"publisher","DOI":"10.1016\/j.jviscsurg.2010.07.007"},{"key":"e_1_2_7_5_2","first-page":"197","article-title":"Classic articles in colonic and rectal surgery. 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