{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2025,9,28]],"date-time":"2025-09-28T11:16:18Z","timestamp":1759058178296},"reference-count":12,"publisher":"Cambridge University Press (CUP)","issue":"12","license":[{"start":{"date-parts":[[2011,9,29]],"date-time":"2011-09-29T00:00:00Z","timestamp":1317254400000},"content-version":"unspecified","delay-in-days":0,"URL":"https:\/\/www.cambridge.org\/core\/terms"}],"content-domain":{"domain":[],"crossmark-restriction":false},"short-container-title":["J. Laryngol. Otol."],"published-print":{"date-parts":[[2011,12]]},"abstract":"<jats:title>Abstract<\/jats:title><jats:sec id=\"S0022215111002593_sec1\"><jats:title>Objective:<\/jats:title><jats:p>To compare anatomical and audiological outcomes of ring versus \u2018Mercedes-Benz\u2019 cartilage-perichondrium graft tympanoplasty in patients with pars tensa cholesteatoma.<\/jats:p><\/jats:sec><jats:sec id=\"S0022215111002593_sec2\"><jats:title>Study design:<\/jats:title><jats:p>Prospective clinical study.<\/jats:p><\/jats:sec><jats:sec id=\"S0022215111002593_sec3\"><jats:title>Setting:<\/jats:title><jats:p>Otolaryngology department, Tanta University Hospital, Egypt.<\/jats:p><jats:p><jats:italic>Patients and methods<\/jats:italic>: Over three years, 60 ears in 60 patients underwent surgery for either sinus or tensa retraction cholesteatoma, reconstructed using either a ring-shaped (30 ears) or Mercedes-Benz symbol shaped (30 ears) cartilage-perichondrium graft, with at least two years' follow up. Post-operative drum perforation and retraction, cholesteatoma residue and recurrence, middle-ear effusion, and hearing acuity were monitored.<\/jats:p><\/jats:sec><jats:sec id=\"S0022215111002593_sec4\"><jats:title>Results:<\/jats:title><jats:p>Anatomical outcomes were equivalent in both groups, but slightly better in the Mercedes group. Hearing improved significantly in both groups (pre- <jats:italic>vs<\/jats:italic> post-operative results), but significantly more so in the ring group. Within-group hearing outcomes were unaffected by cholesteatoma type or tympanoplasty type.<\/jats:p><\/jats:sec><jats:sec id=\"S0022215111002593_sec5\"><jats:title>Conclusion:<\/jats:title><jats:p>The Mercedes-Benz technique may be superior to the ring technique in preventing neodrum retraction. However, the ring graft technique had better hearing outcomes, perhaps due to its more physiological design.<\/jats:p><\/jats:sec>","DOI":"10.1017\/s0022215111002593","type":"journal-article","created":{"date-parts":[[2011,9,29]],"date-time":"2011-09-29T14:56:31Z","timestamp":1317308191000},"page":"1232-1238","source":"Crossref","is-referenced-by-count":4,"title":["Ring versus \u2018Mercedes-Benz\u2019 cartilage-perichondrium graft tympanoplasty in management of pars tensa cholesteatoma"],"prefix":"10.1017","volume":"125","author":[{"given":"O A","family":"Albirmawy","sequence":"first","affiliation":[],"role":[{"role":"author","vocabulary":"crossref"}]}],"member":"56","published-online":{"date-parts":[[2011,9,29]]},"reference":[{"key":"S0022215111002593_ref9","doi-asserted-by":"publisher","DOI":"10.1097\/00129492-200411000-00002"},{"key":"S0022215111002593_ref4","doi-asserted-by":"publisher","DOI":"10.1097\/00005537-200311000-00002"},{"key":"S0022215111002593_ref3","doi-asserted-by":"publisher","DOI":"10.1002\/lary.20195"},{"key":"S0022215111002593_ref1","doi-asserted-by":"publisher","DOI":"10.1097\/00005537-200310000-00017"},{"key":"S0022215111002593_ref10","doi-asserted-by":"publisher","DOI":"10.1016\/j.otc.2006.08.006"},{"key":"S0022215111002593_ref11","doi-asserted-by":"publisher","DOI":"10.1046\/j.1365-2273.2003.00791.x"},{"key":"S0022215111002593_ref2","doi-asserted-by":"publisher","DOI":"10.1258\/0022215054273250"},{"key":"S0022215111002593_ref6","doi-asserted-by":"publisher","DOI":"10.1017\/S0022215110000885"},{"key":"S0022215111002593_ref12","doi-asserted-by":"publisher","DOI":"10.1159\/000105482"},{"key":"S0022215111002593_ref7","first-page":"122","article-title":"Combined intact bridge mastoidectomy with ring graft tympanoplasty","volume":"40","author":"Albirmawy","year":"2011","journal-title":"J Otolaryngol Head Neck Surg"},{"key":"S0022215111002593_ref8","doi-asserted-by":"publisher","DOI":"10.1017\/S0022215106001708"},{"key":"S0022215111002593_ref5","doi-asserted-by":"publisher","DOI":"10.1017\/S0022215106002088"}],"container-title":["The Journal of Laryngology &amp; Otology"],"original-title":[],"language":"en","link":[{"URL":"https:\/\/www.cambridge.org\/core\/services\/aop-cambridge-core\/content\/view\/S0022215111002593","content-type":"unspecified","content-version":"vor","intended-application":"similarity-checking"}],"deposited":{"date-parts":[[2019,4,27]],"date-time":"2019-04-27T03:13:52Z","timestamp":1556334832000},"score":1,"resource":{"primary":{"URL":"https:\/\/www.cambridge.org\/core\/product\/identifier\/S0022215111002593\/type\/journal_article"}},"subtitle":[],"short-title":[],"issued":{"date-parts":[[2011,9,29]]},"references-count":12,"journal-issue":{"issue":"12","published-print":{"date-parts":[[2011,12]]}},"alternative-id":["S0022215111002593"],"URL":"https:\/\/doi.org\/10.1017\/s0022215111002593","relation":{},"ISSN":["0022-2151","1748-5460"],"issn-type":[{"value":"0022-2151","type":"print"},{"value":"1748-5460","type":"electronic"}],"subject":[],"published":{"date-parts":[[2011,9,29]]}}}