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Injection and adhesion palatoplasty: a preliminary study in a canine model
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2013 (Engelska)Ingår i: Journal of Surgical Research, ISSN 0022-4804, E-ISSN 1095-8673, Vol. 183, nr 2, s. 654-662Artikel i tidskrift (Refereegranskat) Published
Abstract [en]

Background: Raising mucoperiosteal flaps in traditional palatoplasty impairs mid-facial growth. Hyaluronic acid-based hydrogels have been successfully tested for minimally invasive craniofacial bone generation in vivo as carriers of bone morphogenetic protein-2 (BMP-2). We aimed to develop a novel flapless technique for cleft palate repair by injecting a BMP-2 containing hydrogel. Material and methods: Dog pups with congenital cleft palate were either non-treated (n = 4) or treated with two-flap palatoplasty (n = 6) or with the proposed injection/adhesion technique (n = 5). The experimental approach was to inject a hyaluronic acid-based hydrogel containing hydroxyapatite and BMP-2 subperiosteally at the cleft palate margins of pups aged six weeks. At week ten, a thin strip of the medial edge mucosa was removed and the margins were closed directly. Occlusal photographs and computed tomography (CT) scans were obtained up to week 20. Results: Four weeks after the gel injection the cleft palate margins had reached the midline and engineered bone had enlarged the palatal bones. Removal of the medial edge mucosa and suturing allowed complete closure of the cleft. Compared to traditional palatoplasty, the injection/adhesion technique was easier, and the post-surgical recovery was faster. CT on week 20 revealed some overlapping or "bending" of palatal shelves in the two-flap repair group, which was not observed in the experimental nor control groups. Conclusion: A minimally invasive technique for cleft palate repair upon injectable scaffolds in a dog model of congenital cleft palate is feasible. Results suggest better growth of palatal bones. This represents an attractive clinical alternative to traditional palatoplasty for cleft palate patients.

Ort, förlag, år, upplaga, sidor
2013. Vol. 183, nr 2, s. 654-662
Nyckelord [en]
Minimally invasive treatment, Cleft palate, Dog, Surgical research
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Naturvetenskap
Identifikatorer
URN: urn:nbn:se:uu:diva-207027DOI: 10.1016/j.jss.2013.03.009ISI: 000321737300029OAI: oai:DiVA.org:uu-207027DiVA, id: diva2:647024
Tillgänglig från: 2013-09-10 Skapad: 2013-09-09 Senast uppdaterad: 2017-12-06Bibliografiskt granskad

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Hilborn, Jöns

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