To Evaluate the Performance of the CORI™ KNEE TENSIONER as an Accessory to the CORI™ Surgical System.

Exclusion Criteria

• •1. Contraindications or hypersensitivity to the use of the CORI™ Surgical System per the IFU.
• •2. Participation in the treatment period of another clinical trial within thirty (30) days of the Pre-Operative Visit, or during the study.
• •3. Women who are pregnant, nursing, or of child-bearing potential who are not utilizing birth control measures.
• •4. Subjects who are non-English speaking.
• •5. Any subject that meets the definition of a Vulnerable Subject per ISO 14155.
• •6. Subjects who have participated previously in this clinical trial
• •7. Subjects with a history of poor compliance with medical treatment.
• •8. Subject needs a CORI™ Surgical System TKA on the index joint as a revision for a previously failed surgery, or need for complex implants, or any other implant than a standard TKA (e.g., stems, augments, or custom-made devices).
• •9. Subject has been diagnosed with post-traumatic arthritis
• •10. Subject needs a bilateral TKA.
• •11. Subject has active infection or sepsis (treated or untreated)
• •12. Subject is morbidly obese with a body mass index (BMI) greater than 40.
• •13. Subjects with a medical or physical condition that, in the opinion of the Investigator, would preclude safe subject participation in the study. This includes:
• •* Advanced osteoarthritis
• •* Joint disease
• •* Paget's or Charcot's disease
• •* Vascular insufficiency
• •* Muscular atrophy
• •* Uncontrolled diabetes
• •* Moderate to severe renal insufficiency
• •* Neuromuscular disease
• •* Mental illness or mental retardation
• •* Drug or alcohol abuse