Tehran University of Medical Sciences Journal of Orthopedic and Spine Trauma 2538-2330 8 4 2022 12 04 109 112 Reza Shahryar Kamrani Department of Orthopedics, Shariati Hospital, Tehran University of Medical Sciences, Tehran, Iran. Mahmoud Farzan Department of Orthopedics, School of Medicine, Joint Reconstruction Research Center, Imam Khomeini Hospital Complex, Tehran University of Medical Sciences, Tehran, Iran Mohamad Sadeghian Joint Reconstruction Research Center, Tehran University of Medical Sciences, Tehran, Iran. Arash Farhoud School of Medicine, Shiraz University of Medical Sciences, Shiraz, Iran. Mahsa Akhtarzadeh Department of Anesthesiology, Imam Hospital Complex, Tehran University of Medical Sciences, Tehran Iran. Mitra Ashrafi Joint Reconstruction Research Center, Tehran University of Medical Sciences, Tehran, Iran. Amir Reza Farhoud Tehran University of Medical Sciences, Joint Reconstruction Research Center 2022 03 20 2022 05 10 Forearm nonunion is rare but a possible complication after standard treatment of the fracture of radius and ulna. The importance of precise restoration of length and anatomical relationship of both bones are among usual concerns. The situation is more complex when the infection is present in the union site. The several techniques have been applied to manage forearm nonunion consisting of osteosynthesis and using cancellous autograft, allograft, nonvascularized fibular graft, fibular flap, bone transport, induced membrane (Masquelet technique), and pedicled flap such as posterior interosseous and radial forearm bone flap (RFBF). Reviewing the recent studies focusing on treating forearm nonunion is the purpose of this review. https://jost.tums.ac.ir/index.php/jost/article/view/380 https://jost.tums.ac.ir/index.php/jost/article/download/380/284