title: In vivo tissue response and durability of five novel synthetic polymers in a rabbit model.
abstract: Alloplastic materials are frequently used in facial plastic surgeries such as rhinoplasty and nasal reconstruction. Unfortunately, the ideal alloplastic material has not been found. This experimental study evaluates the tissue response and durability of five novel polymers developed as an alloplastic material. In this experimental study involving a tertiary university hospital, six subcuticular pockets were formed at the back of 10 rabbits for the implantation of each polymer and sham group. Each pocket was excised with its adjacent tissue after three months, and collected for histopathological examination. Semi-quantitative examination including neovascularisation, inflammation, fibrosis, abscess formation, multinucleated foreign body giant cells was performed, and integrity of polymer was evaluated. A statistical comparison was performed. No statically significant difference was detected in neovascularisation, inflammation, fibrosis, abscess formation and multinucleated foreign body giant cells when a paired comparison between sham and polymer II, III and IV groups was performed individually. Nevertheless, the degree of fibrosis was less than sham group in polymer I (p = .027) and V (p = .018), although the other variables were almost similar. The integrity of polymers III (9 intact, 1 fragmented) and IV (8 intact, 2 absent) was better than the other polymers. These novel synthetic polymers could be considered as good candidates for clinical applicability. All polymers provided satisfactory results in terms of tissue response; however, fibrovascular integration was higher in polymers II, III and IV. In addition, the durability of polymer III and IV was better than the others.
authors.affiliation: Bayindir Icerenkoy Hospital, ENT Clinic, Istanbul;
authors.forename: E
authors.initials: E
authors.lastname: Sahin
authors.affiliation: Eskisehir Osmangazi University, Department of Otolaryngology- Head and Neck Surgery, Eskisehir, Turkey;
authors.forename: C
authors.initials: C
authors.lastname: Cingi
authors.affiliation: Celal Bayar University, Department of Otolaryngology-Head and Neck Surgery, Manisa, Turkey;
authors.forename: G
authors.initials: G
authors.lastname: Eskiizmir
authors.affiliation: Tuzla State Hospital, ENT Clinic, Istanbul, Turkey;
authors.forename: N
authors.initials: N
authors.lastname: Altintoprak
authors.affiliation: Izmir Atatürk Training and Research Hospital, Department of Pathology, Izmir, Turkey;
authors.forename: A
authors.initials: A
authors.lastname: Calli
authors.affiliation: Ekol ENT Hospital, Izmir, Turkey.
authors.forename: C
authors.initials: C
authors.lastname: Calli
authors.affiliation: Koc University, Department of Chemistry, Istanbul, Turkey.
authors.forename: I
authors.initials: I
authors.lastname: Yilgör
authors.affiliation: Koc University, Department of Chemistry, Istanbul, Turkey.
authors.forename: E
authors.initials: E
authors.lastname: Yilgör
mesh_terms: D000818:Animals; D001672:Biocompatible Materials; D008422:Materials Testing; D023421:Models, Animal; D011108:Polymers; D011817:Rabbits; D012225:Rhinoplasty; D013997:Time Factors
chemical_list: D001672:Biocompatible Materials; D011108:Polymers
keywords: Alloplastic material; Bioavailability; Nasal reconstruction; Polymer; Rhinoplasty