A Modified Lateral Lumbar Interbody Fusion VS. Transforaminal Lumbar Interbody Fusion for Adult Degenerative Scoliosis

Adult degenerative scoliosis (ADS) is the most common spinal deformity in the elderly, and the severe patients need surgical treatment. The elderly are often complicated with many medical diseases and the perioperative risk is high, so minimally invasive surgery is a new choice for spinal surgeons to treat ADS. Modified lateral lumbar interbody fusion (CLIF) is an new modified spinal minimally invasive interbody fusion technique in the investigator's department. The results of preliminary studies showed that it has the advantages of less trauma, short operation time and fewer complications, and the clinical and imaging outcome are remarkable. Therefore, the present study aims to establish a multicenter, large sample prospective randomized controlled study to explore the technical advantages and surgical indications of the new technique in the treatment of ADS by comparing with the traditional posterior spinal interbody fusion; (2) to compare the postoperative clinical and imaging results and analyze the surgical complications and preventive measures; (3) to establish a long-term follow-up to further quantify the clinical and imaging outcome of the new technique. Therefore, this study will further verify the safety and effectiveness of the CLIF in the treatment of ADS on the basis of previous studies, and provide a new clinical approach for minimally invasive treatment of ADS.