Isolated proximal tibiofibular dislocation: Don't miss it.

Proximal tibiofibular joint (PTFJ) dislocation is a rare but significant traumatic knee injury that often goes undetected due to its subtle presentation and the rarity of the condition. It accounts for less than 1% of all knee injuries, making it an uncommon diagnosis in clinical practice. Despite its rarity, the implications of missing this injury can be profound, leading to chronic pain, instability, and potential nerve damage if not appropriately managed.Effective management, from closed reduction to open reduction, requires awareness from both clinicians and radiologists. In this case report, we present the clinical presentation, radiological investigations, treatment, and outcome of a 38-year-old woman who presented with a painful left knee following a domestic accident. The diagnosis of anterolateral tibiofibular dislocation was confirmed through careful clinical and radiological assessment. This case underscores the critical importance of early recognition and appropriate management of this uncommon knee injury to prevent long-term complications and ensure optimal patient outcomes. By detailing this case, we aim to raise awareness among clinicians about the need for vigilance in diagnosing PTFJ dislocations and to highlight the key steps in the diagnostic and therapeutic process. This case report contributes to the growing body of literature on PTFJ dislocations, emphasizing the clinical and radiological cues that should prompt consideration of this diagnosis.