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KEN OKAZAKI
Department School of Medicine(Tokyo Women's Medical University Hospital), School of Medicine Position Professor and Division head |
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| Article types | Original article |
| Language | English |
| Peer review | Peer reviewed |
| Title | Lumbar endoscopic unilateral laminotomy for bilateral decompression for lumbar spinal stenosis provides comparable clinical outcomes in patients with and without degenerative spondylolisthesis. |
| Journal | Formal name：World neurosurgery Abbreviation：World Neurosurg ISSN code：18788769/18788750 |
| Domestic / Foregin | Foregin |
| Volume, Issue, Page | pp.1 |
| Author and coauthor | YOSHIKANE Koichi, KIKUCHI Katsuhiko, OKAZAKI Ken |
| Authorship | Corresponding author |
| Publication date | 2021/03 |
| Summary | OBJECTIVE:To investigate and compare the clinical and radiological outcomes of lumbar endoscopic unilateral laminotomy for bilateral decompression (LE-ULBD) for lumbar spinal stenosis (LSS) patients with and without degenerative spondylolisthesis (DS).METHODS:A total of 129 patients who underwent LE-ULBD for single-level LSS were retrospectively reviewed. The patients were classified into two groups based on presence of DS. Clinical outcomes were assessed with the Japanese Orthopaedic Association Back Pain Evaluation Questionnaire (JOABPEQ) and numeric rating scale (NRS) for low back pain, lower limb pain, and lower limb numbness. Scores were obtained at baseline and final follow-up (mean follow-up, 28.6 months [range, 24-63]).RESULTS:The follow-up rate was 77.5% (103 patients). All domains of the JOABPEQ and NRS evaluations significantly improved during the follow-up period in both groups; group differences were not significant except for postoperative NRS limb numbness score, which was higher in patients with DS. Macnab outcome classification was excellent or good in 80% of patients without DS and 77.1% of patients with DS. During the follow-up period, increase of vertebral slip was observed in 31% of the patients with DS that includes vertebral slip progression defined as percent slip > 5% in 4% of the patients. The increase of vertebral slip was not related to clinical outcome. Segmental motion of the affected intervertebral disc did not increase after surgery.CONCLUSIONS:LE-ULBD provides comparably favorable outcome in LSS patients with and without DS. Postoperative segmental instability did not occur in patients with DS. |
| DOI | 10.1016/j.wneu.2021.03.018 |
| PMID | 33722714 |