The osteotomies around the knee takes an important place on the treatment of the single compartment osteoarthritis. The distal femoral osteotomy is a successful treatment choice of the isolated lateral compartment osteoarthritis of the knees with valgus deformity. Both the results of lateral open wedge and medial closing wedge osteotomies are similar and have successful results. Which of the techniques is needed to use depends on the preference and experience of the surgeon. The surgeon may choose any of the techniques that he feels himself comfortable. It must be kept in mind that the distal femoral osteotomy used for the patients with valgus knee and lateral compartment arthritis is not a lifelong treatment. To provide a long and active life chance before the primary arthroplasty is the primary aim of the distal femoral osteotomies.