INTRODUCTION: Chronic elbow dislocation is a profoundly debilitating condition characterized by severe instability, limited elbow function, and significant pain. The term "neglected dislocation of the elbow" refers to a traumatic elbow dislocation that has gone untreated for three weeks or longer. Successfully treating this condition presents a challenge, as it involves restoring elbow stability and achieving a decent range of motion, which can be particularly complex. CASE REPORT: We present a case involving a 34-year-old male patient who experienced a complex dislocation of his right elbow joint. Initial diagnosis at our emergency department missed the elbow dislocation, but a follow-up visit three weeks later revealed the true extent of the injury. Fortunately, successful closed reduction resulted in the patient regaining full range of motion, with a Mayo Elbow Performance Score of 90. CONCLUSION: This case report serves to underscore the essential nature of accurate diagnosis and treatment of elbow dislocations, both clinically and radiologically, to prevent future complications.