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This forest plot shows pooling of RRs of the major complication at 1 year postoperative. It has 16 RCTs including 3221 patients. The 95% CI of the pooled RR is 0.21 to 0.54. This result showed a lower risk of major surgical complications at 1 year for arthroplasty compared with internal fixation. M-H = Mantzel-Haenzel method; df = degrees of freedom; IF = internal fixation.
