An arrangement for providing a proximal surface of a distal end of a femur and a posterior femoral condyle of the femur for a femoral component of a prosthetic knee joint, said arrangement including: a generally L shaped femoral tibia stability gap alignment clamp mountable to the femur such that a vertical arm of the generally L shaped femoral tibia gap alignment clamp is adapted to be contiguous and/or aligned with the distal end of the femur and a horizontal arm of the generally L shaped femoral tibia gap alignment clamp is adapted to be contiguous and/or aligned with a posterior femoral condyle of the femur; a front plate comprising an internal side; wherein said vertical arm of the generally L shaped femoral tibia stability gap alignment clamp comprises a plurality of user-operable lateral adjustable extension tabs (15a, 15b), wherein each user-operable lateral adjustable extension tab is adapted to engage the internal side of the front plate, such that lateral adjustment of the front plate by each of said plurality of user-operable lateral adjustable extension tabs defines a first stability gap as a measurement taken in each of extension, mid-flexion and flexion, wherein the first stability gap is commensurate with a first reference plane defined by the front surface of the front plate, wherein a final bone resection with the first reference plane defined by the front surface of the front plate to a distal end of the femur provides balanced angular movement between the tibia component and the femoral component of the prosthetic knee joint throughout an arc of motion from extension, mid-flexion and flexion post surgery; a base plate (7a, 7b); wherein said horizontal arm of the generally L shaped femoral tibia stability gap alignment clamp includes a plurality of user-operable height adjustable extension tabs (17a, 17b) adapted to engage an upper side of the base plate and adjust the vertical height of the base plate relative to the horizontal arm of the generally L shaped femoral tibia stability gap alignment clamp, such that vertical height adjustment of each of said plurality of user-operable height adjustable extension tabs upon the base plate defines a second stability gap as a measurement taken in each of extension, mid-flexion and flexion, wherein the second stability gap is commensurate with a referenced axis or second reference plane defined on an underside (9a, 9b) of the base plate, wherein fina bone resection with the referenced axis or second reference plane defined on an underside of the base plate to the posterior femoral condyle of the femur provides for balanced angular movement between the femoral component and the tibia component of the prosthetic knee joint throughout an arc of motion from extension, mid-flexion and flexion. a generally L shaped femoral tibia stability gap alignment clamp mountable to the femur such that a vertical arm of the generally L shaped femoral tibia gap alignment clamp is adapted to be contiguous and/or aligned with the distal end of the femur and a horizontal arm of the generally L shaped femoral tibia gap alignment clamp is adapted to be contiguous and/or aligned with a posterior femoral condyle of the femur; a front plate comprising an internal side; wherein said vertical arm of the generally L shaped femoral tibia stability gap alignment clamp comprises a plurality of user-operable lateral adjustable extension tabs (15a, 15b), wherein each user-operable lateral adjustable extension tab is adapted to engage the internal side of the front plate, such that lateral adjustment of the front plate by each of said plurality of user-operable lateral adjustable extension tabs defines a first stability gap as a measurement taken in each of extension, mid-flexion and flexion, wherein the first stability gap is commensurate with a first reference plane defined by the front surface of the front plate, wherein a final bone resection with the first reference plane defined by the front surface of the front plate to a distal end of the femur provides balanced angular movement between the tibia component and the femoral component of the prosthetic knee joint throughout an arc of motion from extension, mid-flexion and flexion post surgery; a base plate (7a, 7b); wherein said horizontal arm of the generally L shaped femoral tibia stability gap alignment clamp includes a plurality of user-operable height adjustable extension tabs (17a, 17b) adapted to engage an upper side of the base plate and adjust the vertical height of the base plate relative to the horizontal arm of the generally L shaped femoral tibia stability gap alignment clamp, such that vertical height adjustment of each of said plurality of user-operable height adjustable extension tabs upon the base plate defines a second stability gap as a measurement taken in each of extension, mid-flexion and flexion, wherein the second stability gap is commensurate with a referenced axis or second reference plane defined on an underside (9a, 9b) of the base plate, wherein fina bone resection with the referenced axis or second reference plane defined on an underside of the base plate to the posterior femoral condyle of the femur provides for balanced angular movement between the femoral component and the tibia component of the prosthetic knee joint throughout an arc of motion from extension, mid-flexion and flexion.