Comparing pooled data

#1
I have started a meta analysis comparing the complication rates of different treatments of distal radius fractures. I have pooled the complication rates (n/N) for each treatment separately using the inverse variance method, the DerSimonian-Laird estimator for tau^2, logit transformation, Clopper-Pearson confidence interval for individual studies and used a continuity correction of 0.5 in studies with zero cell frequencies. Now I want to compare rates of different treatments with the golden standard of plaster cast fixation. How can I best compare the pooled rates, besides a descriptive comparison? I squared is high and will describe this in my paper as well as the biases in this meta-analysis.