DRILL BURR AND METHOD FOR PERFORMING HOLES IN SUBCHONDRAL BONE TO PROMOTE CARTILAGE REPAIR
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United States of America Patent
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app pub date -
Feb 27, 2009
filing date -
Feb 29, 2008
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Abstract
A method for performing holes in subchondral bone to promote cartilage repair comprises selecting a drill burr having a drilling head and an axial stop, as a function of the distance between the tip of the drilling head and the axial stop and of a desired depth to reach a desired subchondral bone marrow compartment of a patient; drilling a hole through a base of a cartilage lesion with the drill burr to reach the desired subchondral bone marrow compartment of the patient; abutting the base of the cartilage lesion defining a periphery of the hole with the axial stop while drilling; and withdrawing the drill burr from the hole; whereby the hole has the desired depth and reaches the desired subchondral bone marrow compartment to promote cartilage repair.
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