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      Nasal floor suspension in secondary bone grafting in unilateral cleft repair: technical note Translated title: Técnica de suspensión de la fosa nasal en injerto óseo secundario en fisura alveolar unilateral: nota técnica

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          Abstract

          ABSTRACT Introduction: One of the most important surgical steps in secondary alveolar bone grafting of the repair of the nasal floor. Proper separation of the nasal and oral mucosa is of utmost importance in order to provide sufficient and adequate space for the bone graft to be placed. A "pocket" is created where the nasal mucosa represents the "roof" and the oral mucosa the "floor". This pocket will host the bone graft which will regenerate bone in the cleft in order to offer proper bony support for future orthodontic treatment and rehabilitation. Watertight and accurate suture of the nasal mucosa is a decisive step in this surgical technique, so as to avoid prolapse of the nasal floor into the graft space which will hamper bone graft intake. Technical note: We present a technical modification where the nasal mucosa is sutured to the maxillary bone with absorbable sutures to keep the nasal floor in proper suspension and avoid prolapse into the graft. Conclusions: This is a simple technique that helps improve the symmetry of the nasal fossa and maintains the nasal floor in proper tension to avoid prolapse of soft tissue within the graft, enhancing bone formation. It is important to use this technique alongside with a membrane.

          Translated abstract

          RESUMEN Introducción: Uno de los pasos quirúrgicos más importantes en el injerto óseo alveolar secundario es la reparación de la fosa nasal. La separación adecuada de la mucosa nasal y oral es de suma importancia para proporcionar un espacio suficiente y adecuado para la colocación del injerto óseo. Se crea un "bolsillo" donde la mucosa nasal representa el "techo" y la mucosa oral el "suelo". Este bolsillo albergará el injerto óseo que regenerará el hueso en la hendidura para ofrecer un soporte óseo adecuado para futuros tratamientos de ortodoncia y rehabilitación. La sutura hermética y precisa de la mucosa nasal es un paso decisivo en esta técnica quirúrgica, para evitar el prolapso del suelo nasal hacia el espacio del injerto, lo que dificultará la supervivencia del injerto óseo. Nota técnica: Presentamos una modificación técnica donde se sutura la mucosa nasal al hueso maxilar con suturas reabsorbibles para mantener el suelo nasal en suspensión adecuada y evitar el prolapso hacia el injerto. Conclusiones: Se trata de una técnica sencilla que ayuda a mejorar la simetría de la fosa nasal y mantiene el suelo de la fosa en la tensión adecuada para evitar el prolapso de tejido blando dentro del injerto, favoreciendo la formación ósea. Es importante utilizar esta técnica junto con una membrana.

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          Secondary bone grafting of residual alveolar and palatal clefts.

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            Review of secondary alveolar cleft repair

            Introduction: The alveolar cleft is a bony defect that is present in 75% of the patients with cleft lip and palate. Although secondary alveolar cleft repair is commonly accepted for these patients, nowadays, controversy still remains regarding the surgical technique, the timing of the surgery, the donor site, and whether the use of allogenic materials improve the outcomes. The purpose of the present review was to evaluate the protocol, the surgical technique and the outcomes in a large population of patients with alveolar clefts that underwent secondary alveolar cleft repair. Materials and Methods: A total of 109 procedures in 90 patients with alveolar cleft were identified retrospectively after institutional review board approval was obtained. The patients were treated at a single institution during a period of 10 years (2001-2011). Data were collected regarding demographics, type of cleft, success parameters of the procedure (oronasal fistulae closure, unification of the maxillary segments, eruption and support of anterior teeth, support to the base of the nose, normal ridge form for prosthetic rehabilitation), donor site morbidity, and complications. Pre- and postoperative radiological examination was performed by means of orthopantomogram and computed tomography (CT) scan. Results: The average patient age was 14.2 years (range 4–21.3 years). There were 4 right alveolar-lip clefts, 9 left alveolar-lip clefts, 3 bilateral alveolar-lip clefts, 18 right palate-lip clefts, 40 left palate-lip clefts and 16 bilateral palate-lip clefts. All the success parameters were favorable in 87 patients. Iliac crest bone grafts were employed in all cases. There were three bone graft losses. In three cases, allogenic materials used in a first surgery performed in other centers, underwent infection and lacked consolidation. They were removed and substituted by autogenous iliac crest bone graft. Conclusions: The use of autogenous iliac crest for secondary alveolar bone grafting achieves all these several objectives: (1) to obtain maxillary arch continuity, (2) to maximize bone support for the dentition, (3) to stabilize the maxillary segments after orthodontic treatment, (4) to eliminate oronasal fistulae, (5) to provide nasal alar cartilage support, (6) to establish ideal alveolar morphology, and (7) to provide available bone with attached soft tissue for future endosteal implant placement in cases where there is a residual dental space. We advocate for the use of a minimal incision to obtain the iliac crest bone graft and for the use of a corticocancellous block of bone in combination with bone chips.
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              Current methods for secondary alveolar bone grafting assessment in cleft lip and palate patients — A systematic review

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                Author and article information

                Journal
                maxi
                Revista Española de Cirugía Oral y Maxilofacial
                Rev Esp Cirug Oral y Maxilofac
                Sociedad Española de Cirugía Oral y Maxilofacial y de Cabeza y Cuello (Madrid, Madrid, Spain )
                1130-0558
                2173-9161
                December 2021
                : 43
                : 4
                : 162-165
                Affiliations
                [1] Madrid orgnameHospital Universitario La Paz España
                [2] Madrid orgnameHospital La Luz España
                Article
                S1130-05582021000400007 S1130-0558(21)04300400007
                10.20986/recom.2021.1295/2021
                d653dc37-a182-48ad-bfac-2f930857f5e9

                This work is licensed under a Creative Commons Attribution-NonCommercial-NoDerivatives 4.0 International License.

                History
                : 26 October 2021
                : 09 June 2021
                Page count
                Figures: 0, Tables: 0, Equations: 0, References: 8, Pages: 4
                Product

                SciELO Spain

                Categories
                Case Reports

                Nasal floor suspension,injerto óseo secundario,hendidura alveolar,Suspensión fosa nasal,secondary bone grafting,alveolar cleft

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