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  • Title: [Experiment of using distraction osteogenesis to repair skull defect].
    Author: Yu B, Gui L, Zhang ZY, Teng L, Lü CS, Niu F, Jin J, Huang LP.
    Journal: Zhonghua Zheng Xing Wai Ke Za Zhi; 2006 Jul; 22(4):266-70. PubMed ID: 17017138.
    Abstract:
    OBJECTIVE: To explore the possibility of using distraction osteogenesis to repair skull defect. METHODS: 17 goats with one year age were chosen randomly. The animals were divided to 3 groups. Group A includes 7 goats, a 3.0 cm x 2.2 cm rectangle skull defect is created on both sides of parietal area. Group B includes 5 goats, a 2.2 cm x 2.2 cm square skull defect was created on right side of parietal area. Group C includes 5 goats, a 3 cm x 1 cm rectangle skull defect was created on both sides of parietal area. Accordingly, different size of transport discs were created on right side of skull and the distraction apparatus is implanted. 3-D CT was done to measure the skull defect on group A. Biomechanical test was done on group B. Process of bone formation illustrated by histological stain, scan and transparent electric microscope was observed on group C. RESULTS: Group A measured by 3-D CT showed that skull defect of experimental side have been repaired by distraction osteogenesis. There was definitely difference between experimental and control side (P < 0.01). Group B measured by biomechanical test showed no definitely difference between experimental and normal side (maximum load P = 0.235 > 0.05, rigidity P = 0.213 > 0.05). Group C showed that the process of bone formation was typical intramembranous. CONCLUSIONS: The evidence showed that skull defect of goat can be repaired by distraction osteogenesis.
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