Bimaxillary orthognathic surgery involves the simultaneous surgical correction of both the maxilla and mandible to address complex dentofacial deformities. While this approach offers comprehensive aesthetic and functional improvements, it also presents unique perioperative challenges for the surgical team. A recent retrospective analysis of 499 cases provides critical insights into how the surgical scope influences clinical and anesthetic outcomes. Specifically, researchers compared 81 single-jaw procedures with 418 bimaxillary interventions conducted between 2017 and 2025.

Anesthetic and Perioperative Outcomes in Bimaxillary Orthognathic Surgery

The study primarily focused on surgical duration, hemodynamic stability, and length of hospital stay (LOS). Furthermore, the investigators analyzed blood transfusion requirements and perioperative complications across both patient groups. As expected, bimaxillary surgery required significantly longer anesthesia and operative times compared to single-jaw procedures. However, intraoperative vitals remained remarkably stable, indicating that modern anesthetic techniques effectively manage the increased complexity. Consequently, the surgical team could maintain hemodynamic control despite the prolonged shared airway challenges.

Additionally, the researchers observed that complication rates did not differ drastically between the two cohorts. Although the bimaxillary group faced more extensive bone manipulation, the incidence of severe adverse events remained low. Moreover, the length of hospital stay appeared largely influenced by the complexity of the deformity rather than the surgical scope alone. Therefore, clinicians can confidently recommend bimaxillary procedures when indicated, provided they implement meticulous perioperative management protocols. Similarly, optimizing American Society of Anesthesiologists (ASA) status preoperatively ensures better recovery trajectories for all patients.

FAQs

What are the primary differences in recovery between single-jaw and bimaxillary surgery?

Bimaxillary surgery typically involves longer operative and anesthesia times due to the dual-arch correction. However, the overall complication rates and length of hospital stay often remain comparable when experts manage the perioperative period carefully.

Does bimaxillary surgery significantly increase the risk of blood loss?

While bimaxillary procedures involve more extensive manipulation, modern surgical and anesthetic techniques keep blood loss within manageable limits. This study indicates that blood transfusion requirements remain low across both surgical types when hypotensive anesthesia is utilized.

Disclaimer: This content is for informational and educational purposes only. It does not constitute professional medical advice, diagnosis, or treatment. Always seek the advice of your physician or other qualified health provider with any questions you may have regarding a medical condition. Refer to the latest local and national guidelines for clinical practice.

References

Akpinar H et al. Comparison of Clinical, Anesthetic, and Perioperative Outcomes Between Single-Jaw and Bimaxillary Orthognathic Surgery: A Retrospective Analysis of 499 Cases. J Craniofac Surg. 2026 Apr 03. doi: 10.1097/SCS.0000000000012710. PMID: 41931360.

Spinelli G, Rochefort J, Lari N. Orthognathic surgery: perioperative management and outcomes. J Biol Regul Homeost Agents. 2017;31(4 Suppl 1):161-167.

Lee KH et al. Complications of orthognathic surgery: a retrospective study of 1,025 cases. Int J Oral Maxillofac Surg. 2017;46(7):851-858.