The diaphyseal fractures of both bone fractures of forearm is one of the most common fracture pattern occurring in adults. These fractures are routinely fixed by plate osteosynthesis with 3.5 mm Asian DCP efficiently and successfully. Since this system is of load bearing type which necessitates distruption of fracture hematoma during fixation, the choice of intramedullary nail fixation for forearm fractures comes into play.This study includes 20 cases (10 cases of plate osteosynthesis, 10 cases of titanium elastic nails), all of whom were adults. The diaphyseal fractures of both radius and ulna were selected. The outcome was analysed with special emphasis on rotatory stability at the fracture site and time taken for full range of motion to occur. Even though, plate osteosynthesis is still the most commonly used form of fixation in adult both bone forearm fractures, titanium elastic nail fixation is a relatively newer technique which offer a viable and more efficient alternative especially in fixation of fractures involving shafts of radius and ulna.