Intramedullary nailing of adult forearm fractures: Results and complications

•Intramedullary interlocking nailing with a compression screw is an alternative method of fixation for treating adult forearm fractures.•Twenty-one patients with forearm shaft fractures underwent intramedullary interlocking nailing procedures.•Several complications arose including one nonunion, one ruptured extensor pollicis longus tendon, and one transitory radial nerve palsy.•Intramedullary interlocking nailing for treating adult forearm fractures results in good clinical outcomes with reliable union rates.