Abstract:To compare the clinical efficacy and postoperative complications of arthroscopic reduction versus open reduction in internal fixation of light tibial plateau fracture by meta-analysis.?Methods?We searched EMBASE, Pubmed, Cochrane Library, CNKI, WanFang Database on computer. Articles of RCT about arthroscopic reduction and open reduction in internal fixation of light tibial plateau fracture were collected and enrolled in the study. Quality of the studies was assessed in terms of study design, definitions of main variables, statistics and bias control. The statistical analysis was conducted by using the Cochrane Collaboration review Manager 5.3.?Results?14 articles including 1 364 patients, of which 680 cases were treated in arthroscopic reduction and internal fixation while 684 cases treated in open reduction and internal fixation, were carefully enrolled in the study. The results showed that arthroscopic reduction had advantages over open reduction in the aspects of reducing of postoperative complications in the short and long term after operation (P?=?0.000), shortening operation time, reducing length of incision, reducing surgical blood loss volume (P?=?0.000), shortening average length of hospital stay, weight bearing time and fracture healing time (P?=?0.000), meanwhile, arthroscopic reduction can improve the excellent rate of knee joint clinical function (P?=?0.004).?Conclusion?This systematic review provides the evidence that the ARIF offers a safe and efficient alternative to treat the light tibial plateau fracture.