PINO ÓSSEO HOMÓLOGO CONSERVADO EM GLICERINA A 98% NA OSTEOSSÍNTESE UMERAL DE POMBOS DOMÉSTICOS (Columba livia) / HOMOLOGOUS BONE PIN CONSERVED IN GLYCERIN AT 98% IN HUMERUS OSTEOSYNTESIS OF DOMESTIC PIGEONS. (Columba livia)
DATA DE PUBLICAÇÃO
The objective of the present study was to evaluate the use of a homologous bone pin, conserved in 98 % glycerin associated to hemicerclage with 910 polyglactin in transverse humerus osteosynthesis in domestic pigeons (Columba livia). The distal part of the tibialtarsus, conserved with bone marrow, was used as a bone pin. Twenty non-sexed healthy adult domestic were operated with this technique. Those animals were randomly separated in five groups of four individuals. The humerus was surgically transversely split up in its diaphysis and the bone pin, after rehydrated and cleaned of the bone marrow, was properly implanted in the sinus of the pneumatic bone. After reduction of the fracture, cranial and caudal holes were made and through them was passed a synthetic to make a Wollff pattern hemicerclage with a thread of 910 polyglactina. The animals were clinically evaluated, being under observation their general state, aspect of the surgical wound, and the use of the member to fly. X-rays were made immediately and every seven days after the surgery, to evaluate the behavior of the bone pin and the period of cicatrization of the fracture and its intensity. After the pre-established period for each group that was of 15, 30, 60, 90, and 120 days, the individuals underwent euthanasia in order to evaluate macroscopically the cicatrization of the fracture, as well as internally, after longitudinal cut, the pneumatic patency of the humerus and the presence of the bone pin and its integrity. The cicatrization of the fracture and the events that took place during the pre-determined periods were evaluated histologically. The conservation of the bone pin in glycerin at 98% was evaluated through microbiological exams. Clinically, it could be noticed excellent adaptation concerning the surgery and normality regarding the use of the member in all the animals. Radiologically, it could be observed cicatrization of the fracture in all the animals of the experiment, within 15 days of evaluation, important bone callus within 30 days and normal bone within 90 days. Macroscopically, bone callus was observed within 15 and 30 days and evolutionary reabsorption with complete and perfect remodeling within 90 days in all the animals, internally, pneumatic patency and presence of the pin. Histologically, it heading occured within 15 days after the surgery, with incomplete remodeling in 60 days, and complete remodeling in 90 days. Besides light to moderate inflammatory reaction in the initial period of evaluation, no other event was diagnosed in the subsequent periods. It was concluded that the implant of a homologous bone pin conserved in 98% glycerin, associated to hemicerclage with 910 polyglactina in Wolff pattern is a highly viable option to transverse humeral osteosynthesis of domestic pigeons.
ACESSO AO ARTIGOhttp://coralx.ufsm.br/tede/tde_busca/arquivo.php?codArquivo=1683
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