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English Abstract
Journal Article
Research Support, Non-U.S. Gov't
[Effect of nano-hydroxyapatite collagen bone and marrow mesenchymal stem cell on treatment of rabbit osteonecrosis of the femoral head defect].
Chinese Journal of Reparative and Reconstructive Surgery 2005 September
OBJECTIVE: To evaluate the effect of nano-hydroxyapatite collagen (nHAC) bone and marrow mesenchymal stem cells (MSCs) on the treatment of rabbit osteonecrosis of the femoral head (ONFH) defect.
METHODS: From June to October 2004, animal models of ONFH defect were established in 45 New Zealand rabbits. They were divided into 3 groups randomly: In group A, as the control group, defect was not filled with any implants; In group B with nHAC; In group C with nHAC+MSC. Imaging and histological observation were made 4, 8, 12 weeks after operation.
RESULTS: group C had a better osteogenesis ability than group B and group A. group B had a better osteogenesis ability than group A. Obvious new bones and osteogenesis were observed in group C 4 weeks after operation. The defect areas in group C were almost repaired 12 weeks after operation.
CONCLUSION: nHAC has a better effect of osteo-conduction and it is a superior material for repairing bone defect of ONFH and of great value in treating ONFH when compounded with MSCs.
METHODS: From June to October 2004, animal models of ONFH defect were established in 45 New Zealand rabbits. They were divided into 3 groups randomly: In group A, as the control group, defect was not filled with any implants; In group B with nHAC; In group C with nHAC+MSC. Imaging and histological observation were made 4, 8, 12 weeks after operation.
RESULTS: group C had a better osteogenesis ability than group B and group A. group B had a better osteogenesis ability than group A. Obvious new bones and osteogenesis were observed in group C 4 weeks after operation. The defect areas in group C were almost repaired 12 weeks after operation.
CONCLUSION: nHAC has a better effect of osteo-conduction and it is a superior material for repairing bone defect of ONFH and of great value in treating ONFH when compounded with MSCs.
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