What does "left distal femoral osteotomy genu valgum" mean?

Surgery type: If you have a knee angular deformity, it can be corrected by cutting a bone (an osteotomy) near the knee joint to change the alignment of the knee. A knock-knee deformity is also called genu valgum, from the latin roots. The correction of a knock knee is usually done by cutting the end of the femur to make the correction. The term "distal" refers to end of the femur at the level of the knee.