The article explains how systematic reviews in orthopaedic surgery help gather reliable evidence from various studies. These reviews follow specific steps like forming a clear question, searching for relevant studies, evaluating their quality, and analyzing the data. Meta-analysis, a statistical method, can combine results from different studies. The quality of systematic reviews is assessed using tools like AMSTAR, not just the quality of individual studies. The Cochrane Collaboration provides important guidelines for conducting systematic reviews in healthcare.