Functional results with Attune Fixed Bearing Posterior Stabilized total knee arthroplasty evaluated with KOOS. A prospective longitudinal cohort study with repetitive measurements 6 weeks, 3, 6, 12 and 24 months postoperative.

Total knee arthroplasty is a well documented and efficient treatment method for degenerative knee arthritis. Nevertheless it is reported that 15-20% of patients are not satisfied with the result. Some of the complaints are anterior knee pain, mid flexion instability and range of motion. Attune Fixed Bearing Posterior Stabilized knee have been developed to address the common complaints after knee arthroplasty surgery . The investigators like to use the Attune Fixed Bearing Posterior Stabilized knee with patella resurfacing on 65 of Our departments eligible patients to evaluate the functional results. Our primary outcome measure is change in Knee Osteoarthritis Outcome Score.

Inclusion Criteria:

• Patients between 50-80 years eligible for total knee arthroplasty at our hospital

Exclusion Criteria:

• Patients unable to cooperate
• Larger deformity that not suitable for a Posterior Stabilized total knee prostheses.
• Revision operation
• Diagnosed with inflammatory arthritis
• Previously septic arthritis in the current knee joint
• Local malignancy/general bone metastases
• Serious Medical conditions that inflict on the walking ability
• Active infections, latent infections og increased risk og infection
• Previously arthrodeses or not well functioned arthroplasties in hips, knees or ankles.
• Neurologic illness with symptoms from the current limb