SPINOPELVIC PARAMETERS AFTER POSTERIOR LUMBAR ARTHRODESIS IN DEGENERATIVE SPINAL DISEASES

ABSTRACT Introduction: Spinopelvic parameters related to sagittal balance have become increasinglyimportantamong spine surgeons due their correlation with patient satisfaction rates. Objective: The goal of this study was evaluate changes in spinal after lumbar surgery using PLIF, the posterior interbody fusion technique. Methods: sample consisted adult patients degenerative disease submitted arthrodesis. Patients between 18 and 70 years agewho underwent surgeryfrom 2015 2017 were included divided into short (1 level) long arthrodesis (2 4 levels) groups. Radiographic analysis spinopelvic parameters, measured before arthrodesis, conducted SURGIMAP software. Then we evaluated variation pre- postoperative measurements performed linear regression analyses parameters. Results: composed 80 (48 men). mean age lower group than (52.67 ± 9.66 versus 59.37 9.30 years, respectively; p<0.0025). Significant variations lordosis, pelvic tilt, vertical axis, T1 angle, incidence minus lordosis found both significantly larger group. Conclusion: In disease, by PLIF allows correction Level evidence III; Retrospective, comparative study.