title: Effect of platelet-rich plasma and fibrin glue on healing of critical-size calvarial bone defects.
abstract: Despite the insufficient number of experimental studies, platelet-rich plasma (PRP) including high amounts of growth factors is introduced to clinical use rapidly. The aim of this study was to compare the effects of PRP and platelet-poor plasma (PPP) on healing of critical-size bone defects.Bilateral full-thickness, critical-size bone defects were created in the parietal bones of 32 rabbits, which had been studied in 4 groups. Saline, thrombin solution, PPP, and PRP were applied to the created defects before closure. Radiologic defect area measurement results at 0, 4, and 16 weeks were compared between the groups. In addition, densities of the newly formed bones at 16th week were studied. Histologic parameters (primary and secondary bone trabecula, neovascularization, and bone marrow and connective tissue formation) were compared between 4- and 16-week groups.More rapid decrease in defect size was observed in groups 3 and 4 than in groups 1 and 2, both in the 4th and 16th weeks. Newly formed bone densities were also found to be higher in these 2 groups. New bone formation was detected to be more rapid considering histologic parameters, in groups 3 and 4 at 4th and 16th weeks.Study demonstrates that PRP and PPP might have favorable effects on bone healing. Although we cannot reveal any statistical difference between these 2 substances considering osteoinductive potential, PRP group has demonstrated superior results compared with fibrin glue group. Higher platelet concentrations may expose beneficial effects of PRP.
authors.affiliation: Department of Plastic, Faculty of Medicine, Gazi University, Ankara, Turkey. kemaldoctor@yahoo.com
authors.forename: Kemal
authors.initials: K
authors.lastname: Findikcioglu
authors.forename: Fulya
authors.initials: F
authors.lastname: Findikcioglu
authors.forename: Reha
authors.initials: R
authors.lastname: Yavuzer
authors.forename: Cigdem
authors.initials: C
authors.lastname: Elmas
authors.forename: Kenan
authors.initials: K
authors.lastname: Atabay
mesh_terms: D000818:Animals; D015519:Bone Density / Q000187:drug effects; D001847:Bone Diseases / Q000473:pathology / Q000601:surgery*; D001853:Bone Marrow / Q000187:drug effects / Q000473:pathology; D001861:Bone Regeneration / Q000187:drug effects; D003238:Connective Tissue / Q000187:drug effects / Q000473:pathology; D004195:Disease Models, Animal; D015718:Fibrin Tissue Adhesive / Q000627:therapeutic use*; D006490:Hemostatics / Q000627:therapeutic use; D021621:Imaging, Three-Dimensional / Q000379:methods; D008297:Male; D018919:Neovascularization, Physiologic / Q000187:drug effects; D010294:Parietal Bone / Q000187:drug effects / Q000473:pathology / Q000601:surgery*; D053657:Platelet-Rich Plasma; D011817:Rabbits; D016037:Single-Blind Method; D013917:Thrombin / Q000627:therapeutic use; D013997:Time Factors; D014014:Tissue Adhesives / Q000627:therapeutic use*; D014057:Tomography, X-Ray Computed / Q000379:methods; D014945:Wound Healing / Q000187:drug effects
chemical_list: D015718:Fibrin Tissue Adhesive; D006490:Hemostatics; D014014:Tissue Adhesives; D013917:Thrombin