title: Optimal handling of fresh cancellous bone graft: different peroperative storing techniques evaluated by in vitro osteoblast-like cell metabolism.
abstract: We investigated the influence of three peroperative handling techniques on the quality of autogenous bone graft by means of osteoblast-like cell metabolism in vitro. Cancellous bone was harvested from the iliac crest of 12 4-month-old female pigs. Osteoblast-like cell cultures were established, using the tissue-explant method: (1) immediately after harvest of bone, (2) after storage of bone in saline at room temperature for 2 hours and (3) after "dry" storage of bone at room temperature for 2 hours. Proliferation was assessed by 3H-thymidine incorporation. Differentiation was assessed by alkaline phosphatase activity and procollagen I production (PICP). We found that osteoblast-like-cell proliferation was higher, when cultures were started shortly after harvesting of bone, or else stored in saline for 2 hours, as compared to bone left "to dry" for 2 hours. Basal alkaline phosphatase and PICP production did not differ in the three groups. These in vitro results suggest the superiority of harvest of autogenous bone graft shortly before the grafting procedure, or else temporary storage of the graft in saline for up to 2 hours.
authors.affiliation: Orthopaedic Research Laboratory, Spine Unit, Department of Orthopaedics E, Aarhus University Hospital, Bygning IA, I, Nørrebrogade 44, DK-8000 Aarhus C, Denmark. Malenebiomeklab@tele.mail.dk
authors.forename: Malene
authors.initials: M
authors.lastname: Laursen
authors.forename: Finn B
authors.initials: FB
authors.lastname: Christensen
authors.forename: Cody
authors.initials: C
authors.lastname: Bünger
authors.forename: Martin
authors.initials: M
authors.lastname: Lind
mesh_terms: D000818:Animals; D016025:Bone Transplantation / Q000379:methods*; D002455:Cell Division / Q000502:physiology; D002478:Cells, Cultured; D005260:Female; D007085:Ilium / Q000166:cytology; D007150:Immunohistochemistry; D023421:Models, Animal; D010006:Osteoblasts / Q000378:metabolism* / Q000502:physiology; D011300:Preoperative Care / Q000379:methods; D011336:Probability; D012680:Sensitivity and Specificity; D018709:Statistics, Nonparametric; D013552:Swine; D014021:Tissue Preservation / Q000379:methods*; D020858:Tissue and Organ Harvesting / Q000379:methods*; D014182:Transplantation, Autologous