Complications of orthognathic surgery.

The following are the most important factors in decreasing postoperative complications related to orthognathic surgery: 1. A good medical history, 2. Thorough clinical evaluation, analysis of surgical model, and cephalometric analysis, 3. Proper diagnosis and treatment planning, 4. Thorough knowledge of anatomy and tissue physiology, 5. Proper surgical technique, 6. Delicate handling of soft tissues, 7. Careful cutting of bone, 8. Good communication among surgeon, orthodontist, and patient. In spite of all the precautions the surgeon may take, complications may still occur. The surgeon should be familiar with possible complications and how to manage them.