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- W2364762113 abstract "Objective:To observe the bone growth and osseointegration during healing process after autogenous nonvascular iliac bone graft and simultaneous implantation and supply proof of this type surgery in clinic by investigating the different results in animal experiment. Methods: Sixteen healthy and white adult male Japanese rabbits, with iliac bone loss imposed and bilateral iliac bone isolated, and then self-made column hydroxide phosphorite implanted simultaneously in the bilateral area of iliac bone with and without autogenous nonvascular bone graft, were randomly divided into 4 groups and four rabbits in each group. the rabbits in every groups was sacrificed at 2,4,8,12 weeks postoperation respectively and the dissected samples were used for general and histological observation, electron microscope scanning and reverse pushing out tests. Results: Implants were connected tightly with iliac bone and the implants weren't flexible in every group from general observation. Osseointegration between the implants and the iliac bone can be found and a thin fibrous tissue was observed only in some sample areas of two-week and four-week autogenous nonvascular iliac bone graft group by the naked eyes. Radial examination shows: There is no obvious x-ray transmission area around the implant but in two-week group . The density of grafting bone area is a bit lower than that of non- grafting area at two-week and four-week groups while at eight-week? twelve week group there is basically no difference in both areas. Histological and scanning electron microscope examination shows: Implants in grafting bone and non-grafting bone group are both osseointegrated with bone while osseointegration in non-graftting bone group is much better. Along with time, osseointegration in every group is much better in turn. Mechanics test (reverse pushing out test) shows that the maximum load of grafting bone group in four, eight and twelve weeks is 66.3 N/cm2?143.9N/cm2?194.6 N/cm2?248.3 N/cm2?respectively while it is 108.6 N/cm2?229.2 N/cm2?307.1 N/cm2?377.6 N/cm2 in non-graftting bone group. Conclusions: The method of autogenous nonvascular iliac bone graft and simultaneous implantation is an effective way to repair the bone difficiency." @default.
- W2364762113 created "2016-06-24" @default.
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- W2364762113 date "2006-01-01" @default.
- W2364762113 modified "2023-09-23" @default.
- W2364762113 title "Study of Repairing Bone Defects with Autogenous Nonvascular Iliac Bone Graft and Simultaneous Implantation" @default.
- W2364762113 hasPublicationYear "2006" @default.
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