Detalhes bibliográficos
| Ano de defesa: |
2010 |
| Autor(a) principal: |
Rodríguez Martínez, Mónica Adriana |
| Orientador(a): |
Silva, Jefferson Luis Braga da
 |
| Banca de defesa: |
Não Informado pela instituição |
| Tipo de documento: |
Dissertação
|
| Tipo de acesso: |
Acesso aberto |
| Idioma: |
por |
| Instituição de defesa: |
Pontifícia Universidade Católica do Rio Grande do Sul
|
| Programa de Pós-Graduação: |
Programa de Pós-Graduação em Medicina e Ciências da Saúde
|
| Departamento: |
Faculdade de Medicina
|
| País: |
BR
|
| Palavras-chave em Português: |
|
| Área do conhecimento CNPq: |
|
| Link de acesso: |
http://tede2.pucrs.br/tede2/handle/tede/1590
|
Resumo: |
Introduction: Autologous fat transplantation is a well-established method often used for soft-tissue augmentation, both in cosmetic and reconstructive procedures. Its most important disadvantages are the unpredictable rate of fat absorption and the difficulty to evaluate results objectively. This study describes quantitative methods to measure the rate of fat absorption. Methods: Nine patients seen in the Hand Surgery Service of Hospital São Lucas of Pontifícia Universidade Católica do Rio Grande do Sul (PUCRS) from March 2008 to October 2009 underwent autologous fat grafting prepared using centrifugation or not in areas of hand atrophy due to ulnar nerve lesions. To evaluate graft integration, digital photos of the hands and diagnostic radiographs were obtained before and after the procedures. Results: The cases were analyzed quantitatively according to patients individual sequelae. Overall, the results of digital photos showed no significant changes in measures. The radiographic technique, although not adequate to measure depth and volume, was more efficient. This type of image provides information about the area of the whole hand or of a region of interest, and demonstrates the augmentation in graft recipient areas. Radiographic analyses may be used to evaluate grafting results. In the qualitative analysis, no observer found deterioration in the cases under study. Most observers did not see any change in the claw condition, but the other evaluations were positive. The statistic difference between methods was not significant, although the procedures that were prepared with centrifugation were rated improved by the observers at a greater percentage. Conclusion: a) The qualitative method described in the literature did not reveal any statistically significant difference between the two grafting methods under study. b) Two quantitative methods to evaluate the integration of fat graft were developed and tested. The comparison between evaluation methods revealed that radiographic images were more efficient than digital photos. c) Results suggest that, based on the radiographic images, computed tomography may be an alternative to measure volume and follow up fat absorption |
