{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2026,7,30]],"date-time":"2026-07-30T14:45:30Z","timestamp":1785422730179,"version":"3.56.0"},"reference-count":63,"publisher":"MDPI AG","issue":"10","license":[{"start":{"date-parts":[[2026,5,19]],"date-time":"2026-05-19T00:00:00Z","timestamp":1779148800000},"content-version":"vor","delay-in-days":0,"URL":"https:\/\/creativecommons.org\/licenses\/by\/4.0\/"}],"funder":[{"name":"Carol Davila University of Medicine and Pharmacy, Bucharest, Romania"},{"id":[{"id":"https:\/\/ror.org\/04fm87419","id-type":"ROR","asserted-by":"publisher"}]}],"content-domain":{"domain":[],"crossmark-restriction":false},"short-container-title":["JCM"],"abstract":"<jats:p>Background and Objectives: Complicated cholesteatomatous otomastoiditis includes a spectrum of inflammatory, suppurative, and destructive lesions affecting the temporal bone and surrounding critical structures, including the dura mater, labyrinth, facial nerve, sigmoid sinus, and skull base. The selection of appropriate surgical techniques and closure materials is decisive for long-term outcomes, functional preservation, and prevention of life-threatening complications. This systematic review and meta-analysis evaluates the evidence base for surgical approaches, intraoperative technologies, and autologous and synthetic closure materials used in the management of iatrogenic and disease-related fistulas in otomastoid surgery. Materials and Methods: A PRISMA 2020-compliant search was conducted across PubMed, Cochrane Library, Embase, and Scopus (2000\u20132024). The review was registered in PROSPERO (CRD420261370406). After the systematic screening process, 56 eligible studies involving 4218 patients were selected for inclusion. The primary outcome measures analysed were infection rates, fistula recurrence, preservation of function, and long-term integrity of the closure. Limitations include the predominance of observational studies and the absence of prospective registration prior to data extraction. Results: Autologous materials demonstrated consistently low infection rates (&lt;10%) in contaminated operative fields and therefore remain the preferred first-line option for the reconstruction of small to moderate defects. In contrast, synthetic materials exhibited superior mechanical durability in large sterile defects, achieving closure integrity rates of 85\u201392% at two-year follow-up. Hybrid reconstructive constructs provided the most favourable overall outcomes, with pooled closure integrity reaching 91.6%, suggesting a synergistic advantage when combining biologic and synthetic components. Furthermore, the adjunctive use of combined microscopic\u2013endoscopic surgical techniques was associated with a significant reduction in residual cholesteatoma rates (OR 0.56, 95% CI 0.38\u20130.82), supporting the growing role of endoscopic assistance in middle ear and mastoid surgery. When biologic closure strategies were appropriately selected according to defect characteristics and contamination status, functional preservation rates exceeded 90\u201395%, underscoring the importance of tailored reconstructive approaches. Conclusions: The durability of long-term outcomes is most strongly influenced by complete pathological clearance and by the strategic alignment of biomaterial properties with defect dimensions, contamination status, and surrounding anatomical structures. In response to these findings, an evidence-based algorithmic framework is proposed to facilitate rational intraoperative material selection.<\/jats:p>","DOI":"10.3390\/jcm15103911","type":"journal-article","created":{"date-parts":[[2026,5,19]],"date-time":"2026-05-19T11:53:10Z","timestamp":1779191590000},"page":"3911","update-policy":"https:\/\/doi.org\/10.3390\/mdpi_crossmark_policy","source":"Crossref","is-referenced-by-count":0,"title":["Surgical Techniques and Materials Used in the Treatment of Complicated Otomastoiditis: A Systematic Review"],"prefix":"10.3390","volume":"15","author":[{"given":"Maria Denisa","family":"Zica","sequence":"first","affiliation":[{"name":"General Medicine, \u201cCarol Davila\u201d University of Medicine and Pharmacy, 050474 Bucharest, Romania"},{"name":"Institute of Phonoaudiology and Functional ENT Surgery \u201cProfesor Dr. D. Hociota\u201d, 050751 Bucharest, Romania"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Catalina","family":"Voiosu","sequence":"additional","affiliation":[{"name":"General Medicine, \u201cCarol Davila\u201d University of Medicine and Pharmacy, 050474 Bucharest, Romania"},{"name":"Institute of Phonoaudiology and Functional ENT Surgery \u201cProfesor Dr. D. Hociota\u201d, 050751 Bucharest, Romania"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Andreea","family":"Rusescu","sequence":"additional","affiliation":[{"name":"General Medicine, \u201cCarol Davila\u201d University of Medicine and Pharmacy, 050474 Bucharest, Romania"},{"name":"Institute of Phonoaudiology and Functional ENT Surgery \u201cProfesor Dr. D. Hociota\u201d, 050751 Bucharest, Romania"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Irina","family":"Ionita","sequence":"additional","affiliation":[{"name":"General Medicine, \u201cCarol Davila\u201d University of Medicine and Pharmacy, 050474 Bucharest, Romania"},{"name":"Institute of Phonoaudiology and Functional ENT Surgery \u201cProfesor Dr. D. Hociota\u201d, 050751 Bucharest, Romania"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"ORCID":"https:\/\/orcid.org\/0009-0008-5250-9219","authenticated-orcid":false,"given":"Luana Maria","family":"Gherasie","sequence":"additional","affiliation":[{"name":"General Medicine, \u201cCarol Davila\u201d University of Medicine and Pharmacy, 050474 Bucharest, Romania"},{"name":"Institute of Phonoaudiology and Functional ENT Surgery \u201cProfesor Dr. D. Hociota\u201d, 050751 Bucharest, Romania"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Oana Ruxandra","family":"Alius","sequence":"additional","affiliation":[{"name":"General Medicine, \u201cCarol Davila\u201d University of Medicine and Pharmacy, 050474 Bucharest, Romania"},{"name":"Institute of Phonoaudiology and Functional ENT Surgery \u201cProfesor Dr. D. Hociota\u201d, 050751 Bucharest, Romania"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"ORCID":"https:\/\/orcid.org\/0009-0008-8516-5344","authenticated-orcid":false,"given":"Alexandra","family":"Bizdu Branovici","sequence":"additional","affiliation":[{"name":"General Medicine, \u201cCarol Davila\u201d University of Medicine and Pharmacy, 050474 Bucharest, Romania"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Razvan","family":"Hainarosie","sequence":"additional","affiliation":[{"name":"General Medicine, \u201cCarol Davila\u201d University of Medicine and Pharmacy, 050474 Bucharest, Romania"},{"name":"Institute of Phonoaudiology and Functional ENT Surgery \u201cProfesor Dr. D. Hociota\u201d, 050751 Bucharest, Romania"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Viorel","family":"Zainea","sequence":"additional","affiliation":[{"name":"General Medicine, \u201cCarol Davila\u201d University of Medicine and Pharmacy, 050474 Bucharest, Romania"},{"name":"Institute of Phonoaudiology and Functional ENT Surgery \u201cProfesor Dr. D. Hociota\u201d, 050751 Bucharest, Romania"}],"role":[{"vocabulary":"crossref","role":"author"}]}],"member":"1968","published-online":{"date-parts":[[2026,5,19]]},"reference":[{"key":"ref_1","unstructured":"Jackler, R.K. (2020). Temporal Bone Anatomy and Surgical Approaches. Skull Base Surgery, Thieme."},{"key":"ref_2","unstructured":"Merchant, S.N. (2010). Schuknecht\u2019s Pathology of the Ear, PMPH-USA. 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