Comparison between the effects of platelet-rich plasma and bone marrow concentrate on defect consolidation in the rabbit tibia
OBJECTIVE: To perform a comparative analysis of the effects of platelet-rich plasma and centrifuged bone marrow aspirate on the induction of bone healing in rabbits. METHOD: Twenty adult, male New Zealand rabbits were randomly separated into two equal groups, and surgery was performed to create a bone defect (a cortical orifice 3.3 mm in diameter) in the proximal metaphysis of each rabbit's right tibia. In the first group, platelet-rich plasma was implanted in combination with β-tricalcium phosphate (platelet-rich plasma group), and in the second group, centrifuged bone marrow in combination with β-tricalcium phosphate (centrifuged bone marrow group) was implanted. After a period of four weeks, the animals were euthanized, and the tibias were evaluated using digital radiography, computed tomography, and histomorphometry. RESULTS: Seven samples from each group were evaluated. The radiographic evaluation confirmed the absence of fractures in the postoperative limb and identified whether bone consolidation had occurred. The tomographic evaluation revealed a greater amount of consolidation and the formation of a greater cortical bone thickness in the platelet-rich plasma group. The histomorphometry revealed a greater bone density in the platelet-rich plasma group compared with the centrifuged bone marrow group. CONCLUSION: After four weeks, the platelet-rich plasma promoted a greater amount of bone consolidation than the bone marrow aspirate concentrate.
Main Authors: | Batista,Marco Antonio, Leivas,Tomaz Puga, Rodrigues,Consuelo Junqueira, Arenas,Géssica Cantadori Funes, Belitardo,Donizeti Rodrigues, Guarniero,Roberto |
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Format: | Digital revista |
Language: | English |
Published: |
Faculdade de Medicina / USP
2011
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Online Access: | http://old.scielo.br/scielo.php?script=sci_arttext&pid=S1807-59322011001000018 |
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