This study was terminated early due to slow enrollment.

This study will investigate the benefits of administering celecoxib (Celebrex), a selective cyclooxygenase -2 (COX-2) inhibitor, in treating osteoarthritis (OA) subjects undergoing elective unilateral primary total knee arthroplasty (TKA) from the pre-operative phase to the management of post total knee replacement pain, and through the 6 weeks of physical therapy and rehabilitation.

Inclusion Criteria:

• The subject is a male or female 18 years or older with osteoarthritis of the knee scheduled to undergo elective unilateral primary total knee arthroplasty because of OA, performed under a standardized regimen of anesthesia and procedure.

Exclusion Criteria:

• Subject has a history of inflammatory arthritis (e.g. rheumatoid arthritis, ankylosing spondylitis) other than osteoarthritis.