
The Effect of Ibandronate on Fracture Healing in Rat Tibia Model
Objective: This study aims to investigate the effect of ibandronate, which is a biphosphonate and acts by inhibiting osteoclasts in osteoporosis treatment, on fracture healing in rat tibia model.
Material and Method: 60 Wistar-Albino type male rats were divided into two groups as study (ibandronate) and control. Under general anesthesia standard closed fractures were created on right tibias of all rats using blunt ended needle holder by three point principle and then closed reduction and fixing with intramedullary nail (0.5 mm) were provided. The day of fractures were created, one oral dose of 250 μg ibandronate (Bonviva® tablet 150 mg, Roche, Istanbul, Turkey ) was given to each group A, B, C and D. 1 month after 250 μg oral dose administration to groups E and F the day the fractures were created, the second dose of 250 μg ibandronate was administered. The rats were killed at 2nd week in groups A and B, at 4th week in groups C and D, and at 6th week in groups E and F. Oral administrations were performed by the same person with 15 gauge plastic feeding through nasogastric gavage. Fracture healing was evaluated as biomechanically, radiologically and histologically.
Results: No positive or negative radiological, biochemical and histological effect of ibandronate was detected, starting from the first day and reaching to 6 weeks, in healing process of closed tibia fractures created and fixed with IM nails in rats.
Mehmet Ozer Dokmeci¹, Ali Murat Kalender², Resit Sevimli³, Mehmet Fatih Korkmaz³* and Okkes Bilal²