Use of castor oil polyurethane in an alternative technique for medial patella surgical correction in dogs.
OBJECTIVE
Comparative morphologic study of utilization of castor oil polymer in dogs joints, as an alternative technique to autogenous graft, in surgical correction of medial patella luxation.


METHODS
Twelve adult dogs, of both sexes, were randomly allocated to two different groups of six animals each. Group I (biopolymer) consisted of the deepening of the right femoral troclea, with the implantation of the biopolymer prothesis, and compared to group II (control) which consisted of the conventional trocleoplastia technique with wedged cut of the left femoral troclea. The dogs were sacrificed after 30 or 90 days and the anathomic peaces were analyzed macro and microscopically. Chi square and Wilcoxon tests were used for the statistic analyses of the results, considering probability of 5%.


RESULTS
It was not observed bony integration on the castor oil polymer group. There was resorption of the graft along experimental period and absence of inflammatory cells in the studied periods.


CONCLUSIONS
Castor oil polymer assisted cicatrisation process, was biocompatible without inflammation, and it can be used in joints as an alternative for bony filling.
Frazilio
Fabrício de Oliveira
Fde O
Health and Development in the West Central Region, UFMS, Brazil. fabriciofrazilio@yahoo.com.br
Rossi
Rafael de
Rd
Negrini Neto
João Marcelino
JM
Facco
Gilberto Gonçalves
GG
Ovando
Thalles Monteiro
TM
Fialho
Maria Paula Ferreira
MP
D000818:Animals; D001672:Biocompatible Materials / Q000627:therapeutic use*; D018786:Bone Substitutes; D016025:Bone Transplantation / Q000379:methods*; D002368:Castor Oil / Q000627:therapeutic use*; D016009:Chi-Square Distribution; D004195:Disease Models, Animal; D004285:Dogs; D005260:Female; D008297:Male; D008422:Materials Testing; D010329:Patella / Q000601:surgery; D031222:Patellar Dislocation / Q000601:surgery*; D011140:Polyurethanes / Q000627:therapeutic use*; D011897:Random Allocation; D014182:Transplantation, Autologous
D001672:Biocompatible Materials; D018786:Bone Substitutes; D011140:Polyurethanes; D002368:Castor Oil