A surgical instrument (20, 26) for use in resecting a femur having a surface topography comprising: a resection guide defining a slot, a resection guide locator comprising a unitary block including: - a bifurcated condylar yoke including a pair of spaced apart arms (30, 31) that projects outwardly from a base, each arm (30, 31) having two surfaces (36, 40) that are complementary to said surface topography of said femur to be resected; and - a guide receptacle including a pair of wings (44, 46) that projects outwardly, in opposite directions from the base and in spaced relation to arms (30, 31), wherein each wing (44, 46) includes a pylon projecting upwardly to a support guide housing such that an elongate slot is defined between the base and the guide housing, the guide receptacle further comprising an annular wall having a shape that is complementary to an outer profile of the resection guide and projecting outwardly in substantially perpendicular relation to a back wall and thereby defines a recess; wherein the recess is sized to receive the resection guide so as to maintain said resection guide in position while said surfaces (36, 40) are arranged in contacting relation with the femur; wherein the elongate slot is sized and shaped to allow a typical surgical saw to pass through from the correspondingly positioned and sized slot in resection guide without contact with resection guide locator when the resection guide is received within the recess, wherein the recess is defined by a resilient wall arranged for storing energy when the resection guide is press-fit in said recess and operatively engages a portion of said wall so as to maintain the resection guide in position while the surfaces (36, 40) of the arms (30, 31) are arranged in contacting relation with the femur. a resection guide defining a slot, a resection guide locator comprising a unitary block including: - a bifurcated condylar yoke including a pair of spaced apart arms (30, 31) that projects outwardly from a base, each arm (30, 31) having two surfaces (36, 40) that are complementary to said surface topography of said femur to be resected; and - a guide receptacle including a pair of wings (44, 46) that projects outwardly, in opposite directions from the base and in spaced relation to arms (30, 31), wherein each wing (44, 46) includes a pylon projecting upwardly to a support guide housing such that an elongate slot is defined between the base and the guide housing, the guide receptacle further comprising an annular wall having a shape that is complementary to an outer profile of the resection guide and projecting outwardly in substantially perpendicular relation to a back wall and thereby defines a recess; - a bifurcated condylar yoke including a pair of spaced apart arms (30, 31) that projects outwardly from a base, each arm (30, 31) having two surfaces (36, 40) that are complementary to said surface topography of said femur to be resected; and - a guide receptacle including a pair of wings (44, 46) that projects outwardly, in opposite directions from the base and in spaced relation to arms (30, 31), wherein each wing (44, 46) includes a pylon projecting upwardly to a support guide housing such that an elongate slot is defined between the base and the guide housing, the guide receptacle further comprising an annular wall having a shape that is complementary to an outer profile of the resection guide and projecting outwardly in substantially perpendicular relation to a back wall and thereby defines a recess; wherein the recess is sized to receive the resection guide so as to maintain said resection guide in position while said surfaces (36, 40) are arranged in contacting relation with the femur; wherein the elongate slot is sized and shaped to allow a typical surgical saw to pass through from the correspondingly positioned and sized slot in resection guide without contact with resection guide locator when the resection guide is received within the recess, wherein the recess is defined by a resilient wall arranged for storing energy when the resection guide is press-fit in said recess and operatively engages a portion of said wall so as to maintain the resection guide in position while the surfaces (36, 40) of the arms (30, 31) are arranged in contacting relation with the femur.