Background: Management of tibial plateau fractures remains challenging because of their number, variety and associated soft tissue injuries that further augment their complexity. Comparison of operative results in recent reports has been difficult due to a lack of standard fracture classification scheme and uniform standardized objective criteria for evaluating results. This study is to analyze the functional outcome of surgical management of tibial plateau fracture in adults with buttress plate, Cannulated Cancellous screw. Methods: Thirty patients with closed tibial plateau fractures were treated operatively and followed up for a minimum period of 6 months. Fractures were classified according to Schatzker’s staging system and results were evaluated using modified Rasmussen’s 30point clinical grading system and Rasmussen’s radiological evaluation. Results: Type I was the most common fracture type (11 cases) followed by type II and type V (7 cases each). The mean age in our study was 37.1 years with male predominance (90%). There were 20% excellent and 46.67% good functional results with only 2 patients having unacceptable results due to severity of injury and old age. The mean Rasmussen’s functional and radiological score were 22.83 and 7.2 respectively. Conclusion: Anatomical reduction and rigid internal fixation followed by early knee motion and partial weight bearing during bone healing are the cornerstones in the treatment of tibial plateau fractures. Functional outcome is better in operatively treated tibial plateau fractures in adults, because it give excellent anatomical reduction and rigid fixation to restore articular congruity and early motion thereby preventing knee stiffness.