| There are many important technical factors to consider to achieve a good surgical result in a total knee arthroplasty (TKA). The importance of component position is widely recognized, which includes proper axial alignment and rotational alignment. Between two of them the proper axial alignment of the prosthetic component is probably the most important factor affecting the survival rate of the prosthetic component and postoperative long-term result. Numerous investigators have supported the limb alignment affects the power distribution and the stability of femora-tibia joint, and it comprises the alignment on both sagittal and frontal planes.The proper limb alignment depends on the position of prosthetic component on both planes. The use of a series of anatomic landmark has been developed to aid the surgeon in determining proper alignment orientation of the femoral component during TKA. Because the TKA is the surface arthroplasty of the femora-tibia joint factually, the understand of anatomy features of distal femora and proximal tibia have clinical significance. Particularly, the distal femoral anatomy feature has attracted surgeons a lot of attention. The measurement of adult normal femur specimens of central Chinese and obtaining the values of the femoral anatomy were aimed to improve the accurate femoral resection and match the distal femoral in TKA. In this study the angles formed between the fours lines on frontal and sagittal planes were measured and the relationships between the four lines were investigated. Furthermore, the... |