title: Outcome of bone grafting in relation to cleft width in unilateral cleft lip and palate patients.
abstract: 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.
  
  
  METHODS
  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.
  
  
  CONCLUSIONS
  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.affiliation: Department of Oral and Maxillofacial Surgery, Vrjie Universiteit Medical Center, Amsterdam, The Netherlands.
authors.forename: A j W
authors.initials: Aj
authors.lastname: van der Meij
authors.forename: J A
authors.initials: JA
authors.lastname: Baart
authors.forename: B
authors.initials: B
authors.lastname: Prahl-Andersen
authors.forename: P J
authors.initials: PJ
authors.lastname: Kostense
authors.forename: J R
authors.initials: JR
authors.lastname: van der Sijp
authors.forename: D B
authors.initials: DB
authors.lastname: Tuinzing
mesh_terms: D000293:Adolescent; D000328:Adult; D016025:Bone Transplantation; D002648:Child; D002971:Cleft Lip / Q000601:surgery; D002972:Cleft Palate / Q000473:pathology* / Q000601:surgery*; D005260:Female; D006801:Humans; D016014:Linear Models; D008297:Male; D019647:Oral Surgical Procedures; D014057:Tomography, X-Ray Computed; D016896:Treatment Outcome