A Study to Verify the Efficacy of YM177 (Celecoxib) in Postoperative Pain Patients

Inclusion Criteria: * Patients with spontaneous pain within 24 hours postoperatively * The intensity of the pain: * 4-categorical assessment: "Moderate pain" or "Severe pain" * VAS assessment: 45.0 mm or higher * Patients whose postoperative pain can be managed using an oral NSAID Exclusion Criteria: * A past history of aspirin-induced asthma * A past of ischemic heart disease, serious arrhythmia, congestive heart failure or cerebrovascular disease * Patients who undergoes the surgical procedure under general anesthesia * Patients taking excluded medications