<prompt> The action of intramedullary K nail is -Two-point fixationThree-point fixationCompressionWeight concentration  <response>: K-nail is used for transverse or short oblique fracture of the femur, especially in the ischemic area.K-nail Kuntscher cloverleaf intramedullary nail provides three points fixation due to elastic deformation.These three points of fixation are both ends of bone 2 points and isthmus 3rd point. 