Objective:To discuss the posterior correction side consecutive placement of pedicle screws and the clinical curative effect of n-HA/PA66 artificial bone grain of bone graft in the treatment of adolescent idiopathic scoliosis(AIS).Methods:21 AIS cases

6 males and 15 females

from July 2007 to July 2010 were reviewed.The average age was 15.2

from 12 to 20.Main curve Cobb angle was 40°~63° and 51.4° on average.They included 10 cases of Lenke Ⅰ

5 cases of Lenke Ⅱ

4 cases of Lenke Ⅲ

1 case of Lenke Ⅳ and 1 case of Lenke Ⅴ.All the 21 patients were treated by posterior correction side consecutive placement of pedicle fixation

and n-HA/PA66 artificial bone grain combining autograft bone grain fusion.Results:After the operations

the Cobb angle was 5°~31° and was 13° on average.The average correction rate was 79%.All the 21 patients’ bone grafts appeared to have successful spinal fusion.The spinal fusion rate was 93.4% in the last survey.The correction rate was not obviously lost in the last survey.All the patients had no obvious complications

and could do some exercises after treatment.Conclusion:For AIS patients

consecutive pedicle screw placement can achieve satisfactory correction rate

and n-HA/PA66 combined with autograft bone can be used for AIS patients’ graft fusion.