{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2026,10,31]],"date-time":"2026-10-31T06:58:04Z","timestamp":1793429884816,"version":"4.5.0"},"reference-count":72,"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>Background\u2002<\/jats:bold> The mostly widely studied biomaterials for the sphincter sparing treatment of anal fistulas are fibrin glue and the anal fistula plug (AFP). However their overall mean clinical success is only 50\u201360%. As the understanding of the pathology of anal fistula, wound healing and the host response to materials has improved, so new biological sphincter\u2010sparing strategies have been developed. The aim of this review is to assess the safety and efficacy of these novel techniques.<\/jats:p><jats:p><jats:bold>Method\u2002<\/jats:bold> PubMed, the Cochrane database and EMBASE were independently searched. All studies that investigated the potential of a biomaterial (defined as any synthetic or biologically derived substance in contact with host tissue) to augment the healing of anal fistula without sphincter division were included. Studies solely describing the role of fibrin glue or an AFP were excluded. Data extraction included type of material, fistula aetiology, treatment of the primary tract, fistula healing, incontinence, duration of follow\u2010up and any specific complications. Systematic quality assessment of the included articles was performed.<\/jats:p><jats:p><jats:bold>Results\u2002<\/jats:bold> Twenty\u2010three articles were finally selected for review. These included a variety of biological and synthetic systems that were employed to deliver selected components of the extracellular matrix, growth factors, cytokines, stem cells or drugs to the fistula tract.<\/jats:p><jats:p><jats:bold>Conclusion\u2002<\/jats:bold> To date no study matches fistulotomy with regard to long\u2010term fistula eradication rate. This is probably due to implant extrusion, inadequate track preparation or an unsuitable material. Future techniques need to address all these issues to ensure success. Success should be validated by MRI or long\u2010term follow\u2010up.<\/jats:p>","DOI":"10.1111\/j.1463-1318.2012.03192.x","type":"journal-article","created":{"date-parts":[[2012,8,10]],"date-time":"2012-08-10T15:13:07Z","timestamp":1344611587000},"page":"1445-1455","update-policy":"https:\/\/doi.org\/10.1002\/crossmark_policy","source":"Crossref","is-referenced-by-count":28,"title":["Novel biological strategies in the management of anal fistula"],"prefix":"10.1111","volume":"14","author":[{"given":"R.","family":"Lewis","sequence":"first","affiliation":[],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"P. J.","family":"Lunniss","sequence":"additional","affiliation":[],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"T. 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