Impaction cradle

A tibial implant system, comprising:

• a tibial implant having an attachment port;
• an intramedullary stem configured to be impacted into the attachment port along an impaction axis;
• and
• an impaction cradle, comprising:
• a rectangular base defining a rectangular perimeter and having a planar body including an upper planar surface defining a base plane and a lower planar surface opposite the upper planar surface and parallel thereto, the planar body further comprising an angled surface recessed from the upper planar surface and oriented transverse to the base plane to orient the tibial implant such that the impaction axis is generally vertical, the angled surface including a first recessed planar segment and a second stepped recessed planar segment that lies closer to the upper planar surface of the planar body than the first recessed planar segment, wherein the angled surface is shaped to receive a lateral tibial condyle portion and a medial tibial condyle portion of the tibial implant.

A knee implant system, comprising:

• a tibial implant having a tibial attachment port;
• a tibial intramedullary stem configured to be impacted into the tibial attachment port along a tibial impaction axis;
• and
• an impaction cradle, comprising:
• a rectangular base defining a rectangular outer perimeter and having a planar body including an upper planar surface defining a base plane, a lower planar surface opposite the upper planar surface and parallel thereto, a tibial angled surface recessed from the upper planar surface for receiving the tibial implant, and a femoral angled surface for receiving a cradle element;
• wherein the tibial angled surface is oriented transverse to the base plane to orient the tibial implant such that the impaction axis is generally vertical;
• wherein the tibial angled surface includes a first recessed planar segment and a second stepped recessed planar segment that lies closer to the upper planar surface of the planar body than the first recessed planar segment.