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New fixation method for maxillary distraction osteogenesis using locking attachments.

Eduardo Yugo Suzuki¹, Boonsiva Buranastidporn, Masatoshi Ishii

¹Department of Orthodontics, Faculty of Dentistry, Chiangmai University, Chiangmai, Thailand. yugotmdu@hotmail.com

Journal of Oral and Maxillofacial Surgery : Official Journal of the American Association of Oral and Maxillofacial Surgeons

|September 20, 2006

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Locking Attachments offer a novel splint fixation for maxillary distraction osteogenesis, significantly reducing operative time. This method enhances surgical efficiency and patient outcomes in treating severe hypoplastic maxilla.

Area of Science:

Craniofacial surgery
Orthognathic surgery
Distraction osteogenesis

Background:

Traditional intraoral splints in rigid external distraction (RED) systems for maxillary distraction osteogenesis present surgical challenges due to external traction hooks.
These hooks can interfere with surgical procedures, potentially increasing operative time and complexity.

Purpose of the Study:

To introduce and evaluate an innovative splint fixation method using Locking Attachments for maxillary distraction osteogenesis.
To assess the advantages of this new method, focusing on the reduction of operating time compared to traditional intraoral splints.

Main Methods:

A retrospective comparison of maxillary Le Fort I osteotomy procedures was conducted.
Operative times were compared between a traditional intraoral splint group (n=14) and a removable intraoral splint with Locking Attachments group (n=14).

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Statistical analysis of operative procedure times was performed using surgical records.

Main Results:

The Locking Attachments group demonstrated a significant reduction in total operative procedure times by 24% to 41% (approximately 65 minutes) compared to conventional splints.
No complications such as pain or discomfort were reported with the postsurgical insertion of the removable splint.
Stable and secure splint fixation was achieved, leading to successful treatment outcomes in all patients.

Conclusions:

Maxillary distraction osteogenesis utilizing Locking Attachments is a highly effective fixation approach for severe hypoplastic maxilla.
This method eliminates lip constraints from scarring and facilitates more precise surgical dissection.
Locking Attachments prove reliable in craniofacial surgery, offering reduced operating time and surgical risks.