For unicompartmental arthroplasty femoral condyle measurer

And said positioning portion; The present invention relates to a method for unicompartmental arthroplasty femoral condyles measuring device measuring the femoral condyle with unicompartmental arthroplasty guides used in conjunction with, the femoral portion includes a positioning measuring unit and measuring measuring portion detachably connected. Measuring femoral condyle for unicompartmental arthroplasty of the present invention can be directly measured during the operation, as compared with the conventional radiography indirect measurement before surgery, taken from sheet quality factors, more accurate measurement; Also, according to surgical needs, may correspond to different prostheses of different radii measuring unit, the measuring unit directly into the femoral condyle, simple operation.