thereof the femoral resection guide comprises a front block a rear block a reference gauge means and a locking means a main scale marked portion is provided corresponding to the front scale member and the rear scale member in order to obtain a size of a patient 39 s femur the front block and the rear block are respectively provided with a resection guide surface for guiding a cutting tool to cut the femur moreover the positions of the front resection guide surface and the rear resection guide surface in relation to the distal section of the femur can be adjusted so that the problem of over or insufficient resection can be avoided and the purchase cost and the storage space of the femoral resection instruments can be significantly reduced application_number US 201514592502 A description embodiments are described in detail below with reference to the fig1 to 18 and the description is used for explaining the embodiments of the present invention only but is not intended to limit the described embodiments of the present invention referring to fig1 to 4 it is a femoral resection guide 100 for measuring and guiding resection of an anterior portion a and a posterior portion p of a femur f as shown in fig5 according to one embodiment of the present invention the femoral resection guide 100 includes a front block 1 a rear block 2 a reference gauge means 3 and a locking means 4 referring to fig1 2 and 5 the front block 1 is provided with a front datum member 11 and two front scale.