en تروما Trauma گزارش مورد Case Report <div style="text-align: justify;"><strong>Background</strong>: A mallet finger and a fracture or dislocation of the proximal interphalangeal joint (PIPJ) on the same finger are rare injuries, usually caused by direct axial trauma.&nbsp;<br> <strong>Case Presentation</strong>: In this report, we present two cases (a 27-year-old man and a 25-year-old woman) of PIPJ fracture/dislocation associated with a mallet finger. PIPJ dislocation/fracture was managed in one patient with open reduction internal fixation (ORIF) through the Shotgun approach and another with extension block pinning.<br> <strong>Conclusion</strong> Mallet finger fracture was managed in both patients with pinning. The results and outcomes of surgery were good in both patients.</div> Proximal interphalangeal joint (PIPJ) fracture, Extension-block pinning, Mallet finger 165 172 http://jros.iums.ac.ir/browse.php?a_code=A-10-1306-2&slc_lang=en&sid=1 Farid Najd Mazher faridnajdmazhar@gmail.com 10031947532846008142 10031947532846008142 No Department of Orthopedics, Bone and Joint Reconstruction Center, School of Medicine, Iran University of Medical Science, Tehran, Iran. alireza ghanbari Alirezaghanbarii92@gmail.com 10031947532846008144 10031947532846008144 Yes Department of Orthopedics, Bone and Joint Reconstruction Center, School of Medicine, Iran University of Medical Science, Tehran, Iran. Hassan Yazdekhsti hyazdekhasti72@gmail.com 10031947532846008143 10031947532846008143 No Department of Orthopedics, Bone and Joint Reconstruction Center, School of Medicine, Iran University of Medical Science, Tehran, Iran.