The purpose of this study is to determine if there are any clinical or radiographic differences in cemented and cementless fixation in total knee replacement.

Out comes measures were to determine:

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