The present study intends to: 1）establish a multi-center large-sample randomized controlled trial to explore the technical advantages and surgical indications of the novel surgical technique of CLIF correction for ASD compared with the conventional correction strategy; 2）analyze the postoperative clinical and imaging results, and to explore the related complications and preventive measures; 3） establish 2-year follow-up to further quantify the clinical and radiographical outcomes of CLIF correction.
adult spinal deformtiy;
40yrs≤age≤80yrs;
Lenke-Silva classification II-V grade;
ineffective with conservative treatment;
severe osteoprosis with T value <-2.5;
with preliminary spinal surgery;
ASA score≥III grade;
more than II degree spondylisthesis;
Parallel
CLIF correction
Procedure/SurgeryCLIF correction was a novel surgical techqiue of correction of spinal deformtiy with minimal invasive approach
conventional correction strategy
Procedure/Surgeryconventional correction was the classic surgical techqiue of correction of spinal deformtiy with open posterior approach
ODI score
ODI score is Oswestry Disability Index（0-100）, indicating the back pain; the higher score, the greater back pain
SF-36 score
SF-36 score is the MOS item short from health survey (0-100), indicating the life quality; the higher score, the better life quality
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