INSTRUMENT TO MEASURE ANGLE BETWEEN POSTERIOR CONDYLAR AXIS AND EPICONDYLAR AXIS OF DISTAL FEMUR The measuring instrument of present invention has two components. Both of them can rotate in reference to each other (if they are allowed to do so) or they can be fixed at certain rotation. To use this instrument during total knee arthroplasty, one component with extended arm will be fixed to lateral and medial epicondyle with 1-2 mm wire or pin and fixation can be augmented by thick 3- 4mm pins through holes at either ends of goniometer marking. The other component of instrument will be flushed to the posterior condyles of femur. The instrument can then measure angle between posterior condylar axis and transepicondylar axis using a goniometer scale with markings (in an analog manner) or using deflection sensors ( in a digital manner).
