Forest plots of the comparisons: (a) overall complication, (b) avascular necrosis, (c) screw penetration, (d) infection, (e) varus displacement, (f) Malunion or nonunion, and (g) reoperation. The solid squares denote the risk ratios (RRs), the horizontal lines represent the 95% confidence intervals (CIs), and the diamond denotes the pooled RR. M–H, Mantel–Haenszel test.