The tibial plateau fracture is a fracture of the proximal end of the tibia, involving the articular surface and the supporting metaphysis of a major weight bearing joint. This fracture frequently accompanies soft tissue injury such as ligaments and menisci. So it often produces disability of the knee joint. Of the tibial plateau fractures which had been treated by open reductions at Keimyung University Hospital between May 1971 and December 1981, the 28 cases that were followed for 1 year to 3 years have been analysed according to its cause, classification, treatment and result. Open reduction is indicated in anyone with one or more of the following deformities as shown by roentgenograms: a compression greater than 6-8mm and a split greater than 5mm of the condyle. Anatomical considerations and a clinical end result study of the 28 fractures emphasize that the unacceptable results were from comminution of the fracture, associated soft tissue injury, osteoporosis, infection and other conditions that prevent early knee motion. Twenty-two cases (79 per cent) out of Twenty-eight revealed the rating of “ACCEPTABLE” according to Roberts criteria.