• Patient must be 18 years of age or older

• Patient qualifies for primary total knee arthroplasty based on physical exam and medical history, including diagnosis of severe knee pain and disability due to osteoarthritis, limited to:

• Mild or Moderate valgus, varus, or flexion deformities

• Patient must be willing and able to complete the protocol required follow-up

• Patient is indicated for a 58mm or 30mm tibial stem extension

• Patient has participated in the study-related informed consent process

• Patient is willing and able to provide written Informed Consent by signing and dating the IRB approved informed consent

• Patient has a platform-compatible personal computer located in their dwelling with appropriate wireless internet access and a USB port

• Independent of study participation, patient is a candidate for commercially available Persona Personalized Knee System implanted in accordance with product labeling