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ISSN 2992-8559 (Electronic)
ISSN 1405-0625 (Print)

2000, Number 3

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Cir Plast 2000; 10 (3)

Reconstruction of the bony contour in craniofacial defects in New Zealand white rabbits, with a bony homograft fixed with cyanoacrylate compared with a bony autograft fixed with wire. Experimental study

Cervantes GJ, Cuenca-Pardo J, Álvarez-Díaz CJ

Language: Spanish
References: 21
Page: 89-96
PDF size: 711.23 Kb.


ABSTRACT

Patients with facial cleft, craniosynostosis, facial tumors, cranium and facial fractures, that require craniofacial reconstruction, where the treatment is based on the principles of craniofacial surgery, includes bony grafts installment. Those which are more widely used are autogenous of the external table of the cranium, that give volume and contour. When the defects are very large, the donor areas are insufficient, molding is hindered by the hardness of the external table, that limits the anatomical configuration of the contour, therefore in this case homografts or alloplastic material are used. An experimental study was carried out in the Unidad de Control Técnico de Insumos of the IMSS, to determine the difference in the reconstruction of the craniofacial contour defects with bony homograft fixed with cyanoacrylate compared to bony autografts fixed with wire. Eleven six-month-old New Zealand white rabbits were used, 3252 g average weight, to which a bilateral craniofacial defect at level of the zigomatic arch was created and two areas were conformed: an experimental one and an other as a control and the subjects were sacrificed when 90 and 150 days were up. The restoration of the bony contour when three months had elapsed was of 8 for the experimental area and of 10 for the control; when five months had passed it was of 9.38 and 9.88 respectively (according to the Lickert analogous scale.) The microscopic permanency of the homograft fixed with cyanoacrylate: for the three-month-period did not show histological demonstrations of ossification or bony bridges training; for the five-month-period the contour was maintained and histologicall ossification and bony bridges training were found. It is concluded that the homograft fixed with cyanoacrylate is a simple procedure, that restores the bony contour, shortens the time of the surgical procedure; yielding similar results to those obtained with bony autograft in the craniofacial bony defects reconstruction.


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