Clinical Research In Nonvascular Iliac Bone Grafts For Mandibular Reconstruction

Objective:To summarize the clinical experience of repairing the different types of mandibular defects with the non-vascularized iliac bone free graft and the methods of improving the survival rate of transplanted bone.Methods:A retrospective analysis was made on clinical data of repairing different types of mandibular defects with non-vascularized iliac bone free graft, a total of21cases from November2006to June2012. Efficacy were observed in the postoperative, the indicators including the survival rate of transplanted bone, the degree of absorption of the bone graft, the symmetry of the mandible around, the occlusal relationship, the chewing function, the width of mouth opening. Survival and failure cases were comparative analyzed from the types of mandibular defect, the condition of planting soft tissue, the free time of transplantation bone, the systemic conditions of the patient for exploring the reasons of failure cases occurred, and proposing the corresponding preventive measures.Results:After following up for6months to2years,18cases of mandibular defect had healed. The appearance and function restoration were satisfactory. The average survival rate may reach to85.7%.3cases had mild infection (14.3%), including two cases of bone graftblock removal and1case of the malignant tumor recurred, the repair with transplanted bone were failed.Conclusions:It is a simple and effective method to rehabilitate the mandibular defect and rebuilding its function and appearance using nonvascularized iliac bone graft.