Fig. 1From: Enhancement of the effects of intermittent parathyroid hormone (1-34) by bone morphogenetic protein in a rat femoral open fracture modelThe A-P and lateral radiographs of the representative case in each group at 8 weeks. Fracture lines remained and fractured femurs were not fused in the group I rats (a), whereas abundant callus formation was seen at the fracture site of group II (b). Rats in groups III (c) and IV (d) showed bone union of fractured femurs. Rats in group V (e) showed bony union of the femur with an expanded callus. Rats in group VI (f) showed complete bony union with matured callusBack to article page