Osteotomy template for femur extramedullary positioning

The invention discloses an osteotomy template for femur extramedullary positioning, and belongs to an auxiliary instrument for an artificial knee joint primary replacement operation. The osteotomy template is used for positioning for distal femur osteotomy in the artificial knee joint primary replacement operation, comprises a tibia surface guide plate (1) and a distal femur osteotomy guide plate (2), and is characterized by further comprising a connecting rod (3), an extramedullary positioning rod (4) and a distal femur osteotomy guide plate fastening nail (5); the tibia surface guide plate (1) can be connected with the distal femur osteotomy guide plate (2) through the connecting rod (3). Through application of the osteotomy template to the artificial knee joint replacement operation, the following advantages can be realized: opening of a femur medullary cavity is not needed, injury and bleeding are reduced, a minimally invasive effect is realized, the pain of a patient is relieved, the knee extension and flexion gaps can be directly determined, osteotomy for several times is not needed, and osteotomy is reduced to the most extent; the osteotomy template is a tool being simple to operate; through adoption of the osteotomy template, the operation duration is shortened, and no any additional cost for preoperative preparation is needed.