Methods and apparatus for mid-flexion balancing during knee arthroplasty

A method of preparing a body to receive a knee implant, the method comprising:

• positioning a knee joint comprising a distal femur and a proximal tibia at a mid-flexion angle;
• performing soft tissue balancing of the knee at the mid-flexion angle that includes adjusting a spacing between tibial and femoral contacts inserted between a distal femur condyle and a native proximal condyle receiver of the knee joint;
• post soft tissue balancing at the mid-flexion angle, mounting a series of pins to the distal femur and the proximal tibia;
• and
• post mounting the series of pins, resecting the distal femur and the proximal tibia.

A method of preparing a body to receive a knee implant, the method comprising:

• positioning a knee joint comprising a distal femur and a proximal tibia at a mid-flexion angle;
• performing soft tissue balancing of the knee joint at the mid-flexion angle that includes adjusting a spacing between tibial and femoral contacts inserted between a distal femur condyle and a native proximal condyle receiver of the knee joint;
• post soft tissue balancing at the mid-flexion angle, mounting a series of pins to the distal femur;
• and
• post mounting the series of pins, resecting the distal femur to create a posterior chamfer planar surface.