Quadsense provides orthopaedic surgeons a tool for adjustment of the patella implant during primary Total Knee Arthroplasty (TKA). Quadsense is indicated for any medical condition in which primary Total Knee Arthroplasty (TKA) would be indicated, and the patella is resurfaced. It is to be used as a comparative tool for adjustment of the patella implant, with a focus of quadricep force. Quadsense is sterile, for single patient use.