A modular prosthetic knee system used to replace the natural knee. The
system includes a femoral knee prosthesis and a tibial knee prosthesis.
Both prostheses are formed of modular components that are connectable
in-vivo to form the prosthetic knee system. The femoral knee prosthesis
includes two separate components, a lateral condyle and medial condyle;
and the tibial knee prosthesis includes a multiple separate components, a
medial baseplate, a lateral baseplate, a medial insert, and a lateral
insert. The medial and lateral baseplate are connectable to form a
complete baseplate with the medial and lateral inserts connectable to the
complete baseplate.