Letter to the Editor: Minimally Invasive versus Open Surgery for Spinal Metastasis: A Systematic Review and Meta-Analysis

[...]the authors mentioned that this study was performed in accordance with the PRISMA (Preferred Inventory for Systematic Reviews and Meta-Analysis) guidelines; however, a protocol was not registered at PROSPERO (Prospective Register of Systematic Reviews) or any other similar registry such as INPLASY (International Platform of Registered Systematic Review and Meta-Analysis Protocols). [...]high heterogeneity was observed in a few outcomes thus affecting the robustness of the results authors should have performed a sensitivity analysis to explain this source of heterogeneity. [...]the authors mention that they utilized the methodology suggested by Wan et al.