Zimmer CAS PSI X-Ray Knee in TKA (Total Knee Arthroplasty)

Exclusion Criteria

• •Is currently enrolled in an investigational new drug or device study
• •Has an active infection (including septic knee, distant infection, or osteomyelitis)
• •Has neurological disorders (including, but not limited to Parkinson's disease)
• •Has had a prior ipsilateral unicompartmental knee arthroplasty, TKA, knee fusion or patellectomy.
• •Has hip or knee ankylosis.
• •Have indications of intra- and/or extra-articular deformations that would eliminate or tend to eliminate adequate implant support or prevent the use of an appropriately sized implant, such as polio, history of tibial plateau fracture, etc.
• •Has any metal within 150 mm of the joint line for the operative-side knee.
• •Has knee deformities greater than 15 degrees of fixed varus, valgus, or flexion contracture on initial physical examination.
• •Is a female who is pregnant or lactating
• •Is currently involvement in any personal injury litigation, medical-legal or worker's compensation claims
• •Has arterial disease or stents that would exclude the use of a tourniquet.
• •Has insufficient quality or quantity of bone to support the implant due to prior knee surgery (or surgeries), cancer, metabolic bone disease, osteoporosis/osteopnea (diagnosed or treated with medication), active/old/remote infection, etc.
• •Has a mental condition that may interfere with his/her ability to give an informed consent or interfere with his/her ability or willingness to fulfill the requirements of the study.
• •Has a condition that would place excessive demands on the implant (e.g., Charcot's joints, muscle deficiencies, multiple joint disabilities, skeletal immaturity, etc.).
• •Has collateral ligament insufficiency.
• •Has an immunosuppressive disorder (e.g., AIDS, etc.) that would require cytotoxic drugs, corticosteroids, large dose of irradiation, or antilymphocytic serum.