Patent ID: 7547307

Claim:
Apparatus for adjustably positioning surgical instrumentation relative to a femur or a tibia, comprising: a. a structural member adapted to fasten to the femur or the tibia; b. instrumentation adapted to guide a resection device employed to resect bone from the femur or the tibia; c. an alignment module connecting the structural member and the instrumentation, comprising: i. a first member connected to the instrumentation; ii. a second member connected to the structural member and connected to the first member in a fashion that allows the second member and the first member to be varied in orientation relative to each other about at least two substantially orthogonal axes; iii. adjustment structure for controlling motion of the second member relative to the first member and for fixing the position of the second member relative to the first member; and d. a fiducial connected at least indirectly to the instrumentation, which fiducial is capable of being tracked in position and orientation in at least three dimensions by a surgical navigation system.