Valgus deformities at the knee can be successfully corrected with V-shaped supracondylar osteotomy. The advantages of this relatively simple technique are low morbidity, good stability with early weight-bearing, no need for internal fixation, and ability to adjust alignment with postoperative cast. Healing is relatively rapid (two months), and the range of motion returns (two months after cast removal) to preoperative values. This technique proved useful for deformities in both young and old patients with osteoarthritis. This is a preliminary report of the surgical technique, postoperative management, and short-term results of a prospectively evaluated series of 14 consecutive cases.