<qa>  What is the final intra-operative plan?2. Post-operative CT scans hip, knee, ankle will be used to evaluate accuracy of placement of the TKA prosthesis femoral and tibial components and accuracy of limb alignment in the coronal, sagittal, and axial planes. The values measured from the post-operative CT scan will be compared to those of the final intra-operative plan; lack of difference between the two will constitute accuracy. 