Maxillary distraction osteogenesis: a two-dimensional mathematical model

The Journal of Craniofacial Surgery
G SwennenC Malevez

Abstract

Patients with cleft lip and palate with severe maxillary retrusion usually have a mandible with anterior-superior autorotation and subsequent overclosure and loss of the vertical facial dimension. Maxillary distraction osteogenesis can correct the sagittal maxillomandibular relationship and should simultaneously reestablish vertical dimension through maxillary vertical height increase and clockwise rotation of the mandible to restore facial balance. We present a two-dimensional mathematical model in the sagittal plane, which reestablishes sagittal and vertical skeletal deficiencies and proper occlusal alignment for planning maxillary advancement with distraction osteogenesis in patients with cleft lip and palate. The model is illustrated in a case of a 13-year-old boy with a complete bilateral cleft lip and palate and severe maxillary retrusion. The two-dimensional mathematical model described in this article allows the surgeon and orthodontist to calculate in a simple and accurate way the ideal distraction vector to advance the maxilla to its desired position.

Citations

Aug 14, 2003·Journal of Cranio-maxillo-facial Surgery : Official Publication of the European Association for Cranio-Maxillo-Facial Surgery·Kiyomasa NakagawaEtsuhide Yamamoto
Sep 23, 2003·The Journal of Craniofacial Surgery·Gwen R J SwennenJarg-Erich Hausamen
Sep 30, 2005·The Journal of Craniofacial Surgery·M Emin Mavili, Gökhan Tunçbilek
Dec 25, 2009·The Journal of Craniofacial Surgery·Steven Arthur WallNadeem Saeed
Jul 5, 2011·The Angle Orthodontist·Eline E B De Clerck, Gwen R J Swennen
Dec 15, 2012·The Cleft Palate-craniofacial Journal : Official Publication of the American Cleft Palate-Craniofacial Association·Ali Borzabadi-FarahaniStephen L-K Yen
Sep 13, 2006·International Journal of Oral and Maxillofacial Surgery·N NadjmiR Van Erum
Apr 12, 2005·American Journal of Orthodontics and Dentofacial Orthopedics : Official Publication of the American Association of Orthodontists, Its Constituent Societies, and the American Board of Orthodontics·Shingo KurodaTeruko Takano-Yamamoto
Jun 19, 2001·International Journal of Oral and Maxillofacial Surgery·G SwennenC Malevez
Apr 28, 2006·Plastic and Reconstructive Surgery·Anand KumarJames P Bradley
Jan 11, 2014·The Journal of Craniofacial Surgery·Nandakishore SahooVishal Gupta

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