Soft Tissue Tension Guided Bone Resection Instruments and Methods

A device for preparing a femur of a patient for receipt of a knee implant in both extension and flexion relative to a resected tibia plateau based on applying a tension to medial and lateral collateral ligaments of said patient, comprising:

• a tibial baseplate configured to rest on said resected tibial plateau,
• a tensioner, the tensioner comprising a tensioner body having a tensioner portion, the tensioner portion affixed anteriorly to the tibial baseplate,
• an expander arm comprising an elongated body portion, a superior side of the elongated body portion having a spiked tip adjacent a posterior end thereof, the spiked tip positioned to selectively interact with an intracondylar notch of the knee under tension, the expander arm operatively connected to the tensioner body via the tensioner portion, the tensioner portion configured for use in selectively raising and lowering the expander arm relative to the tibial baseplate to thereby apply the tension to said medial and lateral collateral ligaments of said patient in extension or in flexion, and
• a resection arm assembly, the resection arm assembly configured for selective attachment to the expander arm, the resection arm assembly including a main body portion, the main body portion supporting a medial paddle, the medial paddle configured to abut against a medial femoral condyle.