Biportal endoscopic decompression vs. microscopic decompression for lumbar canal stenosis: A systematic review and meta‑analysis
- Tiewu Chen
- Guoqing Zhou
- Zhineng Chen
- Xinmiao Yao
- Dan Liu
Affiliations: Department of Traditional Chinese Orthopedics, The Third Affiliated Hospital of Zhejiang, Chinese Medical University, Hangzhou, Zhejiang 310005, P.R. China, Depatment of General Surgery, The Third People's Hospital of Hangzhou, Hangzhou, Zhejiang 310000, P.R. China
- Published online on: July 13, 2020 https://doi.org/10.3892/etm.2020.9001
Copyright: © Chen
et al. This is an open access article distributed under the
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Lumbar decompressive surgery is the gold standard treatment for lumbar spinal stenosis. Minimally invasive surgical techniques have been introduced with the aim of reducing the morbidity associated with open surgery. The purpose of the present study was to systematically search the literature and perform a meta‑analysis of studies comparing the outcomes between biportal endoscopic technique and microscopic technique for lumbar canal stenosis decompression. A comprehensive search of the PubMed, Google Scholar, Web of Science, Embase and the Cochrane Library databases was performed to identify relevant articles up to 15th of December 2019. Eligible studies were retrieved, data were extracted by two authors independently and risks of bias were assessed. A total of six studies involving 438 patients were selected for review. The results of the pooled analysis indicated similar operative times [mean difference (MD), ‑3.41; 95% CI, ‑10.78‑3.96; P<0.36], similar complications (MD, 0.70; 95% CI, 0.33‑1.46; P=0.34), similar visual analogue scale scores for back and leg pain at the time of the final follow‑up and similar Oswestry disability indexes (MD, ‑0.28; 95% CI, ‑1.25‑0.69; P=0.58) for the two procedures. In conclusion, biportal endoscopic technique is a viable alternative to microscopic technique for lumbar canal stenosis decompression with similar operative time, clinical outcomes and complications.