Inclusion Criteria:  Symptomatic osteoarthritis of the knee indicating primary total knee arthroplasty Varus knee deformity of 0 to 10 degrees Sufficient ligamentous function to warrant retention of the posterior cruciate ligament Between ages of 21 and 80 inclusive Patients willing and able to comply with follow-up requirements and self-evaluations Ability to give informed consent No contraindications to Magnetic Resonance Imaging (MRI)  Exclusion Criteria:  Active or previous infection Medical condition precluding major surgery Inflammatory arthropathy Prior Patellectomy PCL deficiency Major Coronal plane deformity Valgus deformity Bone defects requiring augments, cones and/or stemmed implants