Patent ID: 9693881
Date: 2017-07-04
CPC Classifications: A61B,A61F

Claim:
1. An orthopedic instrument for knee arthroplasty comprising: an anterior-posterior sizer assembly having a stylus, a sizer body including medial and lateral posterior feet extending substantially perpendicularly from the sizer body, and a sizer slider slidable relative to the sizer body along a medial-lateral direction relative to a patient's knee, the sizer body having a channel therethrough; a tensor assembly including a tensor frame having a central portion, medial and lateral wings extending at an angle from the central portion, a tab extending from the central portion between the medial and lateral wings and having an elongated aperture, and medial and lateral posterior feet extending substantially perpendicularly to the central portion; a knob rotatably coupled to the tensor assembly, the knob having a cam groove on a side facing the sizer body; and a cam slider slidably supported in the channel of the sizer body in a medial-lateral direction, the cam slider including a first post guidable by the cam groove of the knob and a second post movably received in the elongated aperture of the tensor frame, such that rotating the knob rotates the sizer body relative to the tensor frame and changes a relative gap between the corresponding posterior feet of the sizer body and the tensor frame.