OBJECTIVE: The purpose of this study was to determine the relationship between cleft width and the residual amount of bone after bone grafting in 53 unilateral cleft lip and palate patients. STUDY DESIGN: The fate of the bone graft was determined by the residual amount of bone calculated from computed tomography scans taken immediately after surgery and 1 year postoperatively. Initial cleft width was measured on the computed tomography scans taken immediately after bone grafting. RESULTS: An average cleft width of 6.4 mm (range 3.0-12.2 mm) was found. The average amount of residual bone in the cleft area after 1 year was 64% of the initial bone graft. Linear regression analysis showed that a significant correlation (r = -0.29, P =.04) was found for cleft width in relation to the percentage of residual bone after 1 year. CONCLUSION: The regression analysis indicates that a relation between cleft width and the fate of the bone graft exists. Bone grafts in wider clefts are more prone to resorption than those in more narrow ones.
OBJECTIVE: The purpose of this study was to determine the relationship between cleft width and the residual amount of bone after bone grafting in 53 unilateral cleft lip and palatepatients. STUDY DESIGN: The fate of the bone graft was determined by the residual amount of bone calculated from computed tomography scans taken immediately after surgery and 1 year postoperatively. Initial cleft width was measured on the computed tomography scans taken immediately after bone grafting. RESULTS: An average cleft width of 6.4 mm (range 3.0-12.2 mm) was found. The average amount of residual bone in the cleft area after 1 year was 64% of the initial bone graft. Linear regression analysis showed that a significant correlation (r = -0.29, P =.04) was found for cleft width in relation to the percentage of residual bone after 1 year. CONCLUSION: The regression analysis indicates that a relation between cleft width and the fate of the bone graft exists. Bone grafts in wider clefts are more prone to resorption than those in more narrow ones.
Authors: Diego Coelho Lorenzoni; Guilherme Janson; Juliana Cunha Bastos; Roberta Martinelli Carvalho; José Carlos Bastos; Rita de Cássia Moura Carvalho Lauris; José Fernando Castanha Henriques; Terumi Okada Ozawa Journal: Clin Oral Investig Date: 2016-03-15 Impact factor: 3.573