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The Experimental Research on Repairment of Massive Bone Defect Heterogenic Placenta

Wang Youcheng et al(The Provincial Hospital of Heilongjiang)  
56 adult hybrid rabits were divided into A and B groups radomly. The 1. 2cm radlal bone were resected bilaterally at mid - upper 1 /3. then placenta was transplantated on one side and demineralized bone poeder was transplantated on the other in A group .one side was recieved autoplasty and the other was used as control in B group. The analysis was taken on radiology, histology,machenics and bone mineral contents in postoperative 2, 4, 8 and 12 weeks seperately. The results showed that the bone healed well on both sides in A and the autoplasty side in R and there was no significant difference. Every data on tha placenta transplantation side were better than the control side in B.
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