Aim: To investigate the mid-term efficacy of bilateral decompression with a unilateral approach (BDUA) on symptoms and quality of life of in patients with lumbar spinal stenosis (LSS), with low grade (with percentage slip < 25%) degenerative spondylolisthesis or without spondylolisthesis.
Material And Methods: The study included patients who underwent BDUA due to one or two-level LSS related to degenerative spondylosis and/ or degenerative spondylolisthesis. Pre- and postoperative data of the Oswestry Disability Index (ODI), Visual Analogue Scale (VAS), and walking distance were compared.
Results: Evaluation was made up of a total of 53 patients, comprising 32 males and 21 females with a mean age of 60.6 ± 9.0 years. Compared with the preoperative data, VAS, ODI and walking distance improved significantly in all patients at the 3-year follow-up examination. Furthermore, a significant improvement was determined in the clinical parameters of patients with degenerative spondylolisthesis, with no worsening of slip and no requirement for instrumentation. Moreover, when patients were separated into two groups according to age, as elderly ( > 60 years) and adult ( < 60 years), similar improvements were seen in both groups.
Conclusion: BDUA could be quite effective in reducing pain, improving quality of life and walking distance with no worsening of the grade or degree of slipping.
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