Effects of osteoformin in the rapid distraction osteogenesis of rabbit mandibles

To evaluate the effects of osteoformin on mineralisation and quality of the new bone formation during rapid distraction osteogenesis.

This multi-centre study was conducted at the Karadeniz Technical University, Middle East Technical University and Selcuk University. The experimental study was conducted from January 2010 to September 2012 and comprised New-Zealand rabbits that were randomly divided into three groups. In group I distraction rate was 1 mm/day while in groups II and III distraction rates were 2mm/day and 1 mm/day. In groups I and II 100µg/kg osteoformin was injected after the latency period. Distraction region was evaluated by radiological, histomorphometrical and dual energy X-ray absorptiometry analyses. SPSS 17 was used for statistical analysis.

There were 18 rabbits with each of three groups having 6(33.3%). Accelerated bone healing was noted in groups I and II compared with group III (p<0.05). No significant differences were indicated between groups I and II (p>0.05).

Local injection of osteoformin was effective in the craniomaxillofacial distraction osteogenesis in rabbits. Further experimental studies are recommended before using osteoformin on humans.