This systematic review and meta-analysis included 8 randomized controlled trials, encompassing 555 patients with post-traumatic elbow stiffness, to compare the effects of hinged external fixation combined with open debridement versus open debridement alone. Pooled outcomes of interest included elbow flexion and extension mobility, Mayo elbow function scores, incidence of Mayo excellent rate, and complication rate. The meta-analysis demonstrated significant improvements in elbow mobility and function, and a reduction in complication rates in the group receiving additional hinged external fixation. These findings suggest that hinged external fixation can play a crucial role in enhancing recovery and reducing complications in the treatment of post-traumatic elbow stiffness.