State-of-the-art three-dimensional analysis of soft tissue changes following Le Fort I maxillary advancement

A. Almukhtar, A. Ayoub, B. Khambay, J. McDonald, X. Ju

Research output: Contribution to journalArticlepeer-review

18 Citations (Scopus)


We describe the comprehensive 3-dimensional analysis of facial changes after Le Fort I osteotomy and introduce a new tool for anthropometric analysis of the face. We studied the cone-beam computed tomograms of 33 patients taken one month before and 6-12 months after Le Fort I maxillary advancement with or without posterior vertical impaction. Use of a generic facial mesh for dense correspondence analysis of changes in the soft tissue showed a mean (SD) anteroposterior advancement of the maxilla of 5.9 (1.7) mm, and mean (SD) minimal anterior and posterior vertical maxillary impaction of 0.1 (1.7) mm and 0.6 (1.45) mm, respectively. It also showed distinctive forward and marked lateral expansion around the upper lip and nose, and pronounced upward movement of the alar curvature and columella. The nose was widened and the nostrils advanced. There was minimal forward change at the base of the nose (subnasale and alar base) but a noticeable upward movement at the nasal tip. Changes at the cheeks were minimal. Analysis showed widening of the midface and upper lip which, to our knowledge, has not been reported before. The nostrils were compressed and widened, and the lower lip shortened. Changes at the chin and lower lip were secondary to the limited maxillary impaction.
Original languageEnglish
Pages (from-to)812-817
Number of pages6
JournalThe British journal of oral & maxillofacial surgery
Issue number7
Early online date17 Jun 2016
Publication statusPublished - Sept 2016


  • osteotomy
  • 3D
  • soft tissue
  • analysis
  • maxillary surgery
  • Le Fort I
  • prediction


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