Post-Market Study of Robotic-Arm Assisted Total Knee Arthroplasty

Inclusion Criteria: * Patient requires primary total knee surgery * Patient is willing and able to comply with postoperative follow-up requirements and self evaluations * Patient is willing to sign an IRB approved informed consent * Patient is at least 18 years of age Exclusion Criteria: * Patient has a BMI \> 50 * Patient is skeletally immature * Patient has an active infection or suspected infection in or about the joint * Bone stock that is inadequate to support fixation of the prosthesis * Neuromuscular disorders, muscular atrophy or vascular deficiency in the affected limb rendering the procedure unjustified. * Patients with mental or neurological conditions which may be incapable of following instructions. * Blood supply limitations * Collateral ligament insufficiency. * Patients with prior HTOs or Unis.