Patent ID: 8241292

Claim:
A system for performing a bone osteotomy procedure, comprising: a first cutting block having a first cutting guide surface formed therein and including first and second reference features, the first cutting block being adapted to be affixed to an anterior surface of a tibia in a first position such that the first cutting guide surface is disposed substantially on a first side of the tibia and a second position such that the first cutting guide surface is disposed substantially on a second side of the tibia and is located distally of the first position, the second side being substantially opposite the first side with respect to a plane through the center of the tibia parallel to the sagittal plane; wherein each of the first and second reference features is adapted to engage a respective first and second engagement feature disposed in a respective first and second location on the anterior surface of the tibia when the first cutting block is in the first position, wherein, when the first cutting block is in the second position and the first and second engagement features are disposed in the respective first and second locations, the first reference feature is adapted to engage the second engagement feature and the second reference feature is adapted to engage the first engagement feature; wherein the first cutting block includes a guide portion, an arm adapted to extend in a generally medial-lateral direction from the guide portion when the first cutting block is affixed to the tibia in the first or second position, and a sliding member slidably engaged with the arm; and wherein the second reference feature is disposed on the arm and the first reference feature is disposed on the sliding member; and a second cutting block having a second cutting guide surface formed therein and being adapted for affixation to the anterior surface of the tibia in a second cutting block position such that the second cutting guide surface is positioned relative to the first position of the first cutting guide surface such that it forms an intersecting angle therewith.