A Study to Compare the NexGen LPS and LPS-Flex Knee Implants

Inclusion Criteria

• •Age, 21-80 years
• •Sex, Males and females will be included
• •BMI less than or equal to 39 and calf-thigh less than or equal to 90 degrees
• •Stable health, the patient would be able to undergo surgery and participate in the follow-up program based on physical examination and medical history.
• •Patient is willing and able to cooperate in follow-up therapy.
• •Patient exhibits preoperative radiographic evidence of joint degeneration consistent with TKA that cannot be treated in non-operative fashion.
• •Patient has stable and functional collateral ligaments.
• •Patient has potential to perform higher than average range of motion activities.
• •Operative side range of motion flexion greater than or equal to 90 degrees.
• •Severe knee pain and disability due to degenerative joint disease.
• •Patient or patient's legal representative has signed the Informed Consent form.