Patent ID: 8636741

Claim:
A femoral instrument, comprising: an intramedullary rod having a longitudinal axis; a body to which the intramedullary rod is pivotably attached, the body having a proximal portion; a first collar and a second collar disposed about the intramedullary rod, the second collar disposed between the first collar and the body, the second collar having a proximal and a distal end and a plurality of formations formed on the distal end of the second collar, the second collar being rotatable about the longitudinal axis to present at least one of the plurality of formations to abut the proximal portion of the body and thereby define a relative angle between the body and the intramedullary rod, wherein the first collar and the second collar are translatable along the longitudinal axis; and a spring disposed between the body and the first collar to urge at least the second collar toward the body.