Comparison of Nonposterior- and Posterior-Stabilized Mobile-Bearing Total Knee Arthroplasty

Comparison of Nonposterior- and Posterior-Stabilized Mobile-Bearing Total Knee Arthroplasty A Prospective, Randomized Study

The purpose of this study is to determine if there are any clinical or radiographic differences in non-posterior stabilized rotating mobile bearing design versus a posterior stabilized rotating mobile bearing designs.

Out comes measures were to determine

1. whether the knee and function scores and the radiographic results of the knees with a PFC Sigma RP knee prosthesis would be better than those with an LCS RP prosthesis.
2. whether the patients with a PFC RP knee prosthesis would have a better range of knee motion than those with an LCS RP prosthesis.
3. whether patient satisfaction and preference would be better in the patients having a PFC Sigma RP knee prosthesis than those of patients having an LCS RP knee prosthesis
4. whether complication rate would be less in the knees with a PFC sigma RP knee prosthesis than in the knees with an LCS RP prosthesis.

Inclusion Criteria:

• End-stage osteoarthritis of the knee joint requiring total knee arthroplasty with bilateral disease

Exclusion Criteria:

• Inflammatory disease
• patient with other Lower extremity disease which may affect functional outcome
• Neurologic disease effecting patients lower extremity
• Revision surgery
• Patient not medically cleared for bilateral surgery