CASSIO EDUARDO ADAMI RAPOSO DO AMARAL
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article 8 Citação(ões) na Scopus Histological and radiological changes in cranial bone in the presence of bone wax(2011) RAPOSO-AMARAL, Cassio Eduardo; ALMEIDA, Ana Beatriz Albino de; PASCHOAL, Gustavo; BUENO, Daniela Franco; VULCANO, Luiz Carlos; PASSOS-BUENO, Maria Rita; ALONSO, NivaldoPurpose: To quantify the amount of bone formation in the calvarial region of Wistar rats after craniotomy using bone wax as a haemostatic agent. Methods: Surgery to produce bilateral, symmetric, full-thickness cranial defects (area: 18 mm(2)) was performed in eight animals. The right side of the cranium remained open and the edges of the left side osseous defect was covered with bone wax. Calvaria were imaged immediately after surgery and 12 weeks postoperatively by computerized tomography. The areas of the bone defects were measured in three-dimensional images using Magics 13.0 (Materialise-Belgic, software CAD). Results: The average amount of bone formation on the left and right side respectively was 4.85 mm(2) and 8.16 mm(2). Statistically significant differences between the amount of bone formation on the left and right sides were seen. Conclusion: Bone wax significantly diminishes the rate of bone formation in calvarial defects in a rat model.- Additional Thoughts About Juvenile Hyaline Fibromatosis and Infantile Systemic Hyalinosis(2012) DENADAI, Rafael; BERTOLA, Debora Romeo; STELINI, Rafael Fantelli; RAPOSO-AMARAL, Cassio Eduardo
- A cirurgia de mão como uma área de atuação dos cirurgiões plásticos(2015) DENADAI, RAFAEL; SAMARTINE JUNIOR, HUGO; DENADAI, RODRIGO; PINHO, ANDRE SILVEIRA; AMARAL, CASSIO EDUARDO RAPOSO-DO-ABSTRACT Introduction: Previous studies have shown that the public has misconceptions about the work of plastic surgeons in hand surgery. However, no specific Brazilian data on this issue are available. The objective of this study was to evaluate the public perceptions about the role of plastic surgeons in the field of hand surgery in Brazil. Methods: Members of the Brazilian public chose one or two specialists whom they believed to be experts in eight scenarios related to hand surgery. The patterns of the responses were distributed into “plastic surgeons” or “non-plastic surgeons.” Results: Non-plastic surgeons were significantly (p < 0.05 for all comparisons) more recognized as experts than plastic surgeons in all scenarios related to hand surgery. Conclusion: The knowledge and perceptions of the Brazilian public about the work performed by plastic surgeons in the field of hand surgery are limited.
- Three-Dimensional Changes of Maxilla after Secondary Alveolar Cleft Repair: Differences Between rhBMP-2 and Autologous Iliac Crest Bone Grafting(2015) RAPOSO-AMARAL, Cassio Eduardo; DENADAI, Rafael; ALONSO, NivaldoBackground: Recombinant human bone morphogenetic protein (rhBMP)-2 has been used as an alternative to autologous bone transferring, a standard method of treatment. However, its potential adverse effect on anterior maxillary arch is unknown. Thus, the purpose of this study was to quantify sagittal and transversal changes of anterior maxilla after secondary alveolar cleft repair using traditional iliac crest bone grafting versus rhBMP-2. Methods: Twelve unilateral complete cleft lip and palate patients were randomly divided into 2 groups. In group 1, patients underwent traditional iliac crest bone grafting transferring (n = 4), and in group 2, patients underwent alveolar cleft reconstruction using collagen matrix with lyophilized rhBMP-2 (n = 8). Computed tomography (CT) imaging was performed preoperatively and at 1 year postoperatively, using a previously standardized protocol. A three-dimensional (3D) CT cephalometric analysis of the linear and angular measurements of the sagittal and transverse maxilla planes was performed to assess intra-and intergroup maxillary changes. Results: Intra-and intergroup comparisons of the pre-and postoperative 3D CT cephalometric linear and angular measurements of the sagittal and transverse maxilla planes showed no significant (all P > 0.05) differences among all studied variables. Conclusions: There were no significant anterior maxilla changes after maxillary cleft repair either using iliac crest bone grafting or rhBMP-2.
- Does a Premaxillary Setback and Lip Adhesion Have a Negative Impact on Lip Outcome in Bilateral Cleft Patients?(2017) RAPOSO-AMARAL, Cassio Eduardo; DENADAI, Rafael; ALMEIDA, Ricardo Ruiz Garcia de; MARQUES, Frederico Figueiredo; LEE, Marina De Martino; RAPOSO-AMARAL, Cesar AugustoBackground: The early premaxillary setback and lip adhesion remains as a controversial maneuver in the treatment of bilateral cleft lip and palate patients. This study aimed to assess extent of preoperative deformity and lip outcomes during the first year after surgery in bilateral cleft patients who underwent premaxillary setback and lip adhesion and to compare to those with primary lip repair. Methods: A retrospective observational study was conducted of 16 nonsyndromic consecutive bilateral complete cleft lip patients (with and without Simonart band), who underwent primary cleft lip repair. Patients were allocated in group 1 without premaxillary setback and group 2 with premaxillary setback and lip adhesion. Preoperative and postoperative linear measurements were used for intergroup and intragroup comparisons. Results: Cutaneous lip height of patients in group 2 significantly (P< 0.05) improved after combined premaxillary setback and lip adhesion and primary cleft lip repair. There were no significant (all P> 0.05) differences in intragroup 1 comparisons, and in intergroup comparisons. Conclusion: Bilateral cleft patients with a protruded and deviated premaxilla over 10mm discrepancy of the lateral maxillary achieved noninferior lip symmetry 1 year postoperatively compared with patients with less severe original deformity.
- Retalho de Bernard-Webster para reconstrução do lábio inferior após exérese de carcinoma espinocelular: uma análise dos resultados funcionais(2015) DENADAI, RAFAEL; SARMENTO, GEYSON SOUZA; BUZZO, CELSO LUIZ; RAPOSO-AMARAL, CASSIO EDUARDO; RAPOSO-DO-AMARAL, CESAR AUGUSTOABSTRACT Introduction: Defects in the lower lips after the excision of squamous cell carcinoma (SCC) are usually repaired using several surgical techniques. However, the functional reconstruction of full-thickness defects in the lower lip remains a challenge. Therefore, the objectives of this study were to describe surgical strategies for the reconstruction of full-thickness defects of the lower lip after surgical excision of the SCC and evaluate the functional results. Methods: This was a retrospective study of all patients with full-thickness defects in the lower lip after excisions of SCC that were greater than one third of the lip that were repaired using the Bernard-Webster flap between 2011 and 2014. The functional results (sphincteric, motor and sensory function) were evaluated according to previously used criteria. Results: Six lip defects were reconstructed without complications using Bernard-Webster flaps. During the postoperative period, the patients reported liquid incontinence (16.67%), intermittent salivary incontinence (16.67%), and difficulty fully opening the mouth (33.33%). The tests revealed sensory deficits in the labiomental areas (100%) and lower lip (33.33%). There was full recovery of all functional changes an average of 3 months after surgery. The observed late functional results were considered satisfactory. Conclusions: The Bernard-Webster flap was an excellent alternative to repairing the defects that affect more than one third of the lower lip since it allowed the use of similar local tissues, a single surgery could be performed, and the result was functionally efficient.
- Three-Dimensional Upper Lip and Nostril Sill Changes After Cleft Alveolus Reconstruction Using Autologous Bone Grafting Versus Recombinant Human Bone Morphogenetic Protein-2(2016) RAPOSO-AMARAL, Cassio Eduardo; DENADAI, Rafael; ALONSO, NivaldoCleft alveolus in patients with unilateral complete cleft lip and palate has been alternatively reconstructed with recombinant human bone morphogenetic protein (rhBMP)-2. However, its effects on upper lip and nostril sill anatomy are not known. Thus, the objective of this investigation was to assess and compare upper lip and nostril sill changes after cleft alveolus reconstruction with autologous bone from the iliac crest region and rhBMP-2. Patients were randomly allocated into 2 groups. In group 1, autologous bone from the iliac crest region was used to fill the cleft alveolus (n = 4), and in group 2, rhBMP-2 was used to fill the cleft alveolus (n = 8). Preoperatively and at one after the surgery, computerized tomography (CT) was performed. Reformatted CT imaging was used to perform cephalometric linear measurements of the upper lip and nostril sill regions. Inter-and intragroup data of the pre and postoperative reformatted CT measurements of the upper lip and nostril sill regions did not show differences (P>0.05) in cutaneous upper lip height and projection, nostril sill elevation, and subnasale projection. There were no significant upper lip and nostril sill anatomical changes after cleft alveolus reconstruction using autologous bone grafting and rhBMP-2.