title: Component changes of calcium and phosphorus in osteogenesis by lengthening procedures in adult canines.
abstract: OBJECTIVE
  To explore chemical component changes of dog bone at different lengthening time and in different bone regions of interest, and to evaluate the mineralization during Ilizarov lengthening process.
  
  
  METHODS
  The ash weight, the concentrations of calcium, phosphorus and the calcium/phosphorus ratio were measured at different intervals (2, 4, 6, 8, 12 weeks) since lengthening and the lengthened part was compared with a control area at each interval.
  
  
  RESULTS
  The ash weight, the concentrations of calcium and phosphorus in the lengthened area differed at all development time. The calcium/phosphorus (Ca/P) ratio in the lengthened region remained significantly lower than that in the control region up to 12 weeks after the lengthening.
  
  
  CONCLUSIONS
  These results suggest that also other inorganic ions play an important role in the mineralization process and that they become relatively more important since 8 weeks after the lengthening.
authors.affiliation: Department of Orthopedics of 12th Hospital of Guangzhou City, Guangzhou 510620, China. wbing222@163.com
authors.forename: Bing
authors.initials: B
authors.lastname: Wang
authors.forename: Yi-yun
authors.initials: YY
authors.lastname: Liu
authors.forename: Jie-bai
authors.initials: JB
authors.lastname: Zheng
authors.forename: Guo-xun
authors.initials: GX
authors.lastname: Chen
mesh_terms: D000704:Analysis of Variance; D000818:Animals; D001842:Bone and Bones / Q000737:chemistry*; D002113:Calcification, Physiologic / Q000502:physiology*; D002118:Calcium / Q000032:analysis*; D004285:Dogs; D018889:Ilizarov Technique; D008903:Minerals / Q000032:analysis; D010758:Phosphorus / Q000032:analysis*; D011897:Random Allocation
chemical_list: D008903:Minerals; D010758:Phosphorus; C028705:bone ash; D002118:Calcium