Distraction osteogenesis of the grafted bone

ABSTRACT

Distraction osteogenesis is a well established technique for the lengthening bones and correction of selected craniofacial deformities. Distraction osteogenesis of the grafted bone has the advantage of elongation of the bone stock without the need of another addition of bone graft. Bone graft distraction of is relatively a new technique with few clinical reports. This study was conducted on ten patients who underwent for different reconstructive procedures followed by distraction osteogenesis of the grafted bone. The first group of patients was suffering from T.MJ. ankylosis and reconstructed by costochondral graft. The second group patient had a mandibular continuity defect and reconstructed by autogenous corticocancellous bone block obtained from iliac crest. The third group had deficient alveolar ridge, which augmented by onlay bone graft obtained from iliac crest. After complete take of the graft, distraction osteogenesis was done for the purpose of increasing and improving the bone stock, which led to increasing the efficiency of functional rehabilitation. The postoperative results were favorable with no increased risk due to the previous bone grafting. The technique is recommended for severe cases of bony deformity where either distraction osteogenesis or bone grafting is not enough to treat the patients