Isolated Intra-articular Displaced Distal Ulna Injury: A Rare Case Report and Review of Literature

INTRODUCTION: Although trauma involving distal radioulnar joint due to fall on the outstretched arm is a common injury pattern, Articular isolated fractures of distal ulna without coexistent radius fracture are extremely rare. CASE REPORT: We report on a 19-year-old male who presented at the trauma center after a fall from a two-wheeler with pain and swelling at his right forearm and wrist. After an inconspicuous X-ray in two planes, a computed tomography (CT) scan was performed and detected an isolated distal ulna fracture with an intact distal radioulnar joint. The patient was treated with closed reduction and K-wire fixation with a full functional range of motion attended at 10 weeks. CONCLUSION: We recommend mandatory CT scan of the wrist, along with the early closed reduction, to get excellent results in such rare cases.