A method for excising a portion of an articular surface using a retrograde procedure. An access tunnel is provided extending through a bone and to the articular surface. A central shaft is inserted through the access tunnel to the articular surface and a cutter is coupled to the central shaft. The cutter...http://www.google.fr/patents/US7951163?utm_source=gb-gplus-shareBrevet US7951163 - Retrograde excision system and apparatus