<prompt> Action of intramedullary K nail is -Two-point fixationThree-point fixationCompressionWeight concentration  <response>: Kuntsher;s clover leaf intra medullary nail K nail. Fixation of the K nail is based on 3 point fixation. It fixes bone at 3 points, at either ends and at isthmus. REF:Essential ohopaedics- 5th edn- pg no 373. 