Mechanical Failure of Primary Clavicle Locking Plate Osteosynthesis Following Early Postoperative Overloading: A Case Report

Plate fixation is the gold standard for displaced clavicle fractures, offering excellent union rates and early functional recovery. However, implant failure may occur due to biological, mechanical, or patient-related factors, including non-compliance with postoperative rehabilitation. A 19-year-old male sustained a displaced fracture at the junction of the middle and lateral third of the left clavicle following a road traffic accident. He underwent open reduction and internal fixation with superior clavicular plating, and the immediate postoperative period was uneventful. Three weeks later, he developed sudden pain and deformity after lifting a heavy object despite advice to avoid weight-bearing activities. Radiographs revealed bending of the clavicular plate with fracture displacement, indicating implant failure. Revision surgery with implant removal and replating was successfully performed, resulting in progressive fracture union and good functional recovery. This case emphasizes the importance of strict postoperative compliance and patient education to prevent avoidable implant failure following clavicle plating.