Histological and immunohistochemical study on the survival of diced cartilage grafts wrapped in surgical and fascia in albino rabbits

Diced cartilage graft is commonly used in plastic and reconstructive surgery such as auricular reconstruction and rhinoplasty. Wrapping diced cartilage with fascia or surgicel or other wrappers can affect the survival of cartilage grafts. This study was carried out to verify the survival of cartilage grafts when they are unwrapped or wrapped with surgicel versus fascia. This study was carried out on 20 adult male albino rabbits. They were divided into four equal groups. Cartilage grafts were harvested from both ears of group I. One part was used as the control and the other part was diced into 0.5-mm pieces and implanted into subcutaneous dorsal pockets of the other three groups as follows: group II received unwrapped diced cartilage grafts, group III received diced cartilage graft wrapped in surgicel, and group IV received diced cartilage graft wrapped in fascia. At the end of the eighth week, the rabbits were sacrificed and the original surgical sites were incised with their implants. The specimens were prepared for histological and immunohistochemical study using glial fibrillary acidic protein to be examined by means of a light microscope. Cartilage grafts wrapped in fascia showed the best survival, and cell viability was more or less similar to that of normal cartilage. They showed significant increase in the nuclear lacunar count, number of glial fibrillary acidic protein -positive chondrocytes, and in the pixel intensity of Mallory trichrome-stained sections. This was superior to those kept without wrapping and to those wrapped in surgicel. Diced cartilage grafts wrapped with fascia demonstrated normal cartilage architecture with respect to chondrocyte viability and collagen and elastic content compared with cartilage grafts kept without wrapping or those wrapped in surgicel

Incidencias de hernias abdominales anteriores en pacientes asistidos en el Hospital Militar Cap.(Av) Dr. Guillermo Hernández Jacobsen: mayo 2005-octubre 2006 / Incidence abdominal hernias in patients assisted at the Hospital Militar Cap.(Av) Dr. Guillermo Hernandez Jacobsen: may 2005-october 2006

Se realizó un estudio retrospectivo y descriptivo con 207 pacientes de todas las edades operados en el Servicio de Cirugía General y Pediátrica en el Hospital Militar de San Cristóbal, a quienes se les practico Herniplastia en la pared abdominal anterior. Durante el periodo de dieciocho meses comprendidos desde mayo 2005 a octubre 2006. Más de la tercera parte de los pacientes tenían entre 16 y 30 años de edad, con predominio del sexo masculino, en una relación 2:1 a excepción de la Crural. El mayor número de cirugía de urgencia se realizó en personas mayores de 76 años. La hernia Umbilical fue el diagnóstico operatorio más frecuente (52.17 por ciento). La Hernia inguinal fue la segunda en frecuencia y constituyo la asociada con mayor relevancia. La Epigástrica predominó ante la Crural. La mortalidad por complicación fue nula. Cerca del 4 por ciento de los pacientes fue intervenido de emergencia. Por lo que concluimos que nuestros resultados en los diferentes tipos de hernias estudiados no escapan de los observados en las estadísticas nacionales e internacionales.