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Objective To evaluate the therapeutic effects of applying internal fixation with a T-shaped locking plate that was used on the distal radius in fractures of the anterior process of the calcaneus (APC) with calcaneocuboid (CC) joint injury. Methods This retrospective study enrolled adult patients diagnosed with APC with CC joint injury that had received internal fixation with a T-shaped locking plate of the distal radius. Group NA underwent open reduction with ‘not-across’ CC joint plate fixation; and group A underwent open reduction with ‘across’ CC joint locking plate fixation. The outcomes were assessed using the American Orthopaedic Foot and Ankle Society (AOFAS) score, a visual analogue scale (VAS) pain score and radiological evaluations. Results A total of 72 patients were enrolled in the study; 36 in each group. At 1 month after surgery, the outcomes of group NA were superior to group A in terms of AOFAS and VAS scores. Compared with group A, group NA showed significantly lower intraoperative blood loss, operation time and length of hospital stay. There were no significant differences in the postoperative improvement of Bolher's and Gissane's angles between the two groups. Conclusion Early functional recovery was faster in group NA than group A.