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  • Title: Nonvascularized bone grafts: how successful are they in reconstruction of segmental mandibular defects?
    Author: Dastgir R, Coffey J, Quereshy H, Baur DA, Quereshy FA.
    Journal: Oral Surg Oral Med Oral Pathol Oral Radiol; 2024 May; 137(5):e63-e72. PubMed ID: 38155011.
    Abstract:
    OBJECTIVE: Segmental mandibular defects can occur due to various etiologies, including trauma and tumor resection. Reconstruction should provide adequate support for subsequent dental rehabilitation and allow for proper occlusion. Nonvascularized bone grafts have been used for reconstructing mandibular defects in cases where vascularized grafts were not feasible. The objective of this study was to assess the success rate of these grafts in reconstruction of segmental defects of various sizes in the mandible. STUDY DESIGN: Fifty patients were included in this retrospective chart review. Length of the grafts varied from 3 to 20 cm and patients were followed up from 4 to 80 months. Fifteen grafts were harvested from anterior iliac crest, 23 from posterior iliac crest, 9 grafts were a combination of either with costochondral graft, and 3 were solely allografts. Bone morphogenetic protein was utilized in 41 cases as an adjunct. RESULTS: Success was defined as continuity of bone clinically and radiographically at a 4-month follow-up. Nonvascularized bone grafting was successful in 90% of cases. Complications were observed in 34% of cases, of which the most common were infection followed by wound dehiscence. CONCLUSIONS: Our study demonstrated substantial success rate with nonvascularized bone grafts in reconstruction of segmental mandibular defects.
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