title: Minimally Invasive Unilateral vs. Bilateral Pedicle Screw Fixation and Lumbar Interbody Fusion in Treatment of Multi-Segment Lumbar Degenerative Disorders.
abstract: BACKGROUND The choice for instrumentation with minimally invasive transforaminal lumbar interbody fusion (MIS-TLIF) in treatment of degenerative lumbar disorders (DLD) remains controversial. The goal of this study was to investigate clinical outcomes in consecutive patients with multi-segment DLD treated with unilateral pedicle screw (UPS) vs. bilateral pedicle screw (BPS) instrumented TLIF. MATERIAL AND METHODS Eighty-four consecutive patients who had multi-level MIS-TLIF were retrospectively reviewed. All data were collected to compare the clinical outcomes between the 2 groups. RESULTS Both groups showed similar clinical function scores in VAS and ODI. The two groups differed significantly in operative time (P<0.001), blood loss (P<0.001), and fusion rate (P=0.043), respectively. CONCLUSIONS This study demonstrated similar clinical outcomes between UPS fixation and BPS procedure after MIS-TLIF for multi-level DLD. Moreover, UPS technique was superior in operative time and blood loss, but represented lower fusion rate than the BPS construct did.
authors.affiliation: Department of Spine Surgery, Yuhuangding Hospital, Yantai, Shandong, China (mainland).
authors.forename: Xiaoyang
authors.initials: X
authors.lastname: Liu
authors.affiliation: Department of Spine Surgery, Yuhuangding Hospital, Yantai, Shandong, China (mainland).
authors.forename: Guangrun
authors.initials: G
authors.lastname: Li
authors.affiliation: Department of Spine Surgery, Yuhuangding Hospital, Yantai, Shandong, China (mainland).
authors.forename: Jiefeng
authors.initials: J
authors.lastname: Wang
authors.affiliation: Department of Spine Surgery, Yuhuangding Hospital, Yantai, Shandong, China (mainland).
authors.forename: Heqing
authors.initials: H
authors.lastname: Zhang
mesh_terms: D000368:Aged; D005260:Female; D006801:Humans; D055959:Intervertebral Disc Degeneration / Q000601:surgery*; D007405:Intervertebral Disc Displacement / Q000601:surgery*; D008159:Lumbar Vertebrae / Q000601:surgery; D008161:Lumbosacral Region / Q000601:surgery; D008297:Male; D008875:Middle Aged; D019060:Minimally Invasive Surgical Procedures / Q000295:instrumentation / Q000379:methods*; D065289:Pedicle Screws; D012189:Retrospective Studies; D013123:Spinal Fusion / Q000295:instrumentation / Q000379:methods*; D055009:Spondylosis / Q000601:surgery; D016896:Treatment Outcome