Pedicle Screw Fixation and Fusion by Improved Wiltse Mini-invasive Approach and Self-made Retractor in Treatment of Lumbar Spondylolisthesis
YANG Yao
HE Zeng-liang
Abstract：Objective To analyze clinical effect and safety of pedicle screw fixation and fusion by improving wiltse mini-invasive approach and self-made retractor in treatment of lumbar spondylolisthesis.Methods A total of 24 patients with lumbar spondylolisthesis underwent pedicle screw fixation and fusion by improving wiltse mini-invasive approach and self-made retractor during January 2013 and December 2015, and all patients were followed up for 3-18 months.Intraoperative blood loss volume, operative time and improvement rate of treatment were observed, and changes of slip angle, slip percentage, visual analogue scales (VAS) score and Japanese Orthopaedic Association (JOA) score were compared before operation and at the last time of follow-up.Results All patients underwent operation successfully, and the operative time was(145±24.40) min, and intraoperative volume of blood loss was (167.50±70.88) ml.There were no complications such as blood transfusions, cerebrospinal leak and nerve roots damage with 3-18 months of follow-up.There were significant differences in visual analogue scales (VAS) and Japanese orthopaedic association (JOA) in the last time follow-up compared with those before operation (P<0.05).There were 18 patients with excellent, 4 patients with good and 2 patients with common, and the good and excellent rate was 91.7％.Conclusion Pedicle screw fixation and fusion by improved wiltse mini-invasive approach and self-made retractor in treatment of lumbar spondylolisthesis can achieve minimal trauma, good clinical effect and safety.
Keywords：Lumbar spondylolisthesisSurgical proceduresminimally invasiveSpinal fusion
Publication Date：2017-01-01
Online Publishing Date：2025-08-15(First online date of this platform, not the publication date of the document)
Pages：3( 48-50 )