Post surgical pain associated with ligament reconstruction may persist for few days after the surgical procedure. Arcoxia is a new anti-inflammatory and analgesic drug that alleviate pain through oral administration. This study will test the safety and efficacy of Arcoxia in the management of post-operational pain in patients receive the ligament reconstruction surgery.

Inclusion Criteria:

1. Men and women age ranged from 16~35 who have anterior cruciate ligament injury and/or associated injuries are scheduled for ACL reconstruction surgery.
2. Patient agrees to participate into this study and is willing to sign the patient informed consent form.