Utilização do enxerto de omento em osteotomia unicortical por escariação em ovinos

Abstract

The objective of this study was to evaluate the use of omentum graft in the unicortical osteotomy of the ovine tibia, through the radiographic analysis of the bone defects. Six healthy, undefined sheep were used, ranging in age from 3 to 5 years, weighing on average 50 kg. The animals were submitted to general inhalation anesthesia to perform the unicortical osteotomy in the proximal diaphyseal third of the tibiae. The surgical procedure was performed on the medial aspect of the bones, caudally the crest of the tibia and ventral to the tibial plateau, by means of a 7mm bone mill. Treatment was established in the left pelvic limb, with autogenous omental graft recoating of 10 cm2 and control in the right pelvic limb. The animals were submitted to daily physical evaluation and monitored radiographically in the immediate postoperative period and on days 15, 30, 45 and 60. The radiographic images were evaluated using a failure-filling score, with 1 = failure with filling Between 0 and 25%; Score 2 = between 25% and 50%; Score 3 = between 50% and 75% and score 4 = between 75% and 100%, aiming to evaluate if the use of omentum grafts was effective in the present study.