Complex elbow fractures featuring a comminuted coronoid process are infrequent and pose considerable treatment challenges. The optimal strategy for maximizing recovery of elbow function through osteosynthesis remains a subject of ongoing debate among surgeons. We applied the principle of internal fixation by implementing intra-osteal fixation with a mini plate, which facilitated the successful restoration of exceptional elbow function in the patient. This approach adeptly managed the complexity of the coronoid process fracture, encompassing its fragmentation and associated injuries, thereby demonstrating its feasibility and efficacy in achieving favorable clinical outcomes. This article investigates the viability of this surgical technique for managing such complex fractures.