Allogeneic osteoblasts compounded with beta-tricalcium phosphate for repair of radial defects

doi:10.3969/j.issn.2095-4344.2013.34.001

Abstract

Abstract:

BACKGROUND: As a bone scaffold material, β-tricalcium phosphate has good biocompatibility, osteoinductive, and biomechanical properties.
OBJECTIVE: To study the effect of allogeneic osteoblasts compounded with β-tricalcium phosphate in repairing rabbit radial defects.
METHODS: A total of 45 rabbit radial defect models were made and divided into three groups in random. Experimental group was repaired with the compound of allogeneic osteoblasts and β-tricalcium phosphate; control group with β-tricalcium phosphate; and blank control group with nothing. The new bone formation of each group was observed and assessed by X-ray and histopathological analysis at weeks 4, 8, 16 after implantation for evaluation of the bone repairing effect.
RESULTS AND CONCLUSION: With the repair time, the experimental group appeared to complete bone defect repair gradually. By the end of 16 weeks, the X-ray showed that the bone callus between the scaffold and the host was completely ossified, and bone defects were completely repaired in the experimental group. Histopathological observation showed continuous cortical bone formed in the defect area, and canal recanalization realized in the experimental group. Additionally, the repair effect in the experimental group was better than that in the control and blank control group at different time points (P < 0.01). It is suggested that the allogenic osteoblasts/β-tricalcium phosphate compound has the better effects on guiding bone regeneration and preventing from nonunion

Key words: biomaterials, tissue-engineered bone materials, β-tricalcium phosphate, artificial bone, osteoblasts, bone defect, ministerial grants-supported paper

CLC Number:

R318

Yang Hua-qing, Zhang Ming-yu, Dang Xiao-qian, Wang Kun-zheng. Allogeneic osteoblasts compounded with beta-tricalcium phosphate for repair of radial defects[J]. Chinese Journal of Tissue Engineering Research, 2013, 17(34): 6061-6066.

Figures/Tables 9

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