Intervention1: BrainLab Computer navigation system: computer navigation markers are placed over femur and tibia intraoperatively and the readings plotted by the computer system is used to determine th

A clinical trial to study the importance of computer system for balanced knee in comparison to conventional method in patients undergoing total knee replacement surgery.

A clinical trial to study the importance of computer system for balanced knee in comparison to conventional method in patients undergoing total knee replacement surgery using different implant designs.