Abstract :
Adolescent idiopathic scoliosis (AIS) is a complex 3D deformity of the spine. Its prevalence is between 2% and 3% in the general population. Correction scoliosis using low density (LD) screw constructs can provide similar radiographic and clinical outcomes Therefore, whether LD or high density (HD) screw constructs are better for AIS patients remains a subject of debate. In BPJS era at Adam Malik hospital, there’s a restriction of using implant like pedicle screw in spine case operation because cost of disease and procedure operation was too high rather than budget of the patient that BPJS provide, so usually low density screw constructs was using for correction scoliosis procedure at that situation. Four patients AIS with variety of Lenke type was underwent correction scoliosis procedure with 3 patients AIS type I and 1 patient AIS type V underwent procedure with low density screw construct (<1.6 screws per level). All of the patients underwent x-ray after the operation and x ray follow up after 1 year operation, to compare cobb angle and sagittal modifier after operation and 1 year post operation. Four patients with variation of Lenke type with correction procedure with low density (LD) screw constructs show that the follow up of cobb angle and sagittal parameter after post operation and 1 year post operation that same measurement. With clinical function of the patient and quality life of the patient was increase significantly. The use of low density pedicle screw construct (LD) in correction scoliosis procedure for AIS patient in Haji Adam Malik hospital has the same result in cobb angle and saggital modifier in after the operation and 1 year post operation.
