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Abstract Objective：To compare the effectiveness of locking compression plate combined with three different bone grafts autogenous bone， allogeneic bone，and bone morphogenetic protein（ BMP） composite bone for radius and ulna fracture nonunion.Method：From December 2009 to December 2013， 62 cases of eligible of radius and ulna fracture nonunion were randomly treated with autogenous bone（ group A， n=22）， allogeneic bone（ group B， n=23）， and BMP composite bone（ group C， n=17）.The cure rate after 12 months and the Anderson good rate of forearm fractures were compared among 3 groups at different time points.Result：All patients of 3 groups were followed up at least 12 months.The cure rate of groups A and B was signifcantly different（ χ2=5.494，P < 0.05）， but no significant diference was found between groups A，C and B，C （P>0.05）.The Anderson good rate was compared at same period：There were significant difference between the group A and B of each time period（ P<0.05），but no significant difference was found between groups A and C； at 6th and 12th months after operation， there was significant difference between the group B and C（ P<0.05）.Conclusion：The effect of BMP composite bone is equivalent to that of autogenous bone graft in treating nonunion of radius and ulna fracture， and they are better than allogeneic bone graft.
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