Forty nine cases of the proximai tibial metaphyseal fractures treated and managed at the Department of Orthopedic Surgery, Severance Hospital from Jan. 1971 to Dec. 1980 were analysed in inclinical and radiological aspect. The results obtained from this study were as followings: l. Among the 49 patients, male were 30 patients and female 19 patients (M:F=1.6:1). 2. The main cause of the fractures was the traffic accident, 42 cases (85.7%). 3. The most common type of the fractures was the transverse fracture, 21 cases (42.9%). 4. The better prognosis of the treatment was the closed reduction. 5. The better prognosis of the fracture type was shown in the transverse fracture and the poor prognosis was in the anterior long oblique fracture. 6. In the union time of the fracture, there was no significant differences between the proximal tibial metaphyseal fracture and the tibial shaft fracture.