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Changes in soft tissue thickness after Le Fort I osteotomy in different cleft types.

A Heliövaara1, J Hukki, R Ranta

  • 1Cleft Center, Department of Plastic Surgery, Helsinki University Central Hospital, Finland.

The International Journal of Adult Orthodontics and Orthognathic Surgery
|October 22, 2002
PubMed
Summary
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See all related articles

Le Fort I osteotomy in cleft patients causes upper lip thinning, especially in unilateral cleft lip and palate (UCLP) and bilateral cleft lip and palate (BCLP) cases. Soft tissue thickness varies significantly between isolated cleft palate (CP), BCLP, and UCLP.

Area of Science:

  • Craniofacial surgery
  • Plastic surgery
  • Orthognathic surgery

Background:

  • Le Fort I osteotomy is a common surgical procedure for correcting midface hypoplasia in cleft lip and palate patients.
  • Understanding soft tissue changes is crucial for predicting aesthetic outcomes.

Purpose of the Study:

  • To evaluate soft tissue thickness changes in the upper lip and perioral areas following Le Fort I osteotomy in different cleft types.
  • To compare these changes among patients with isolated cleft palate (CP), unilateral cleft lip and palate (UCLP), and bilateral cleft lip and palate (BCLP).

Main Methods:

  • Cephalometric analysis of soft tissue thickness before and 6 months after Le Fort I osteotomy.
  • Study included 46 patients: 10 CP, 10 BCLP, and 26 UCLP.
  • Exclusion criteria included bimaxillary surgery, rhinoplasty, or V-Y plasty.

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Main Results:

  • All cleft types showed thinning in the subnasal area, superior labial sulcus, and upper lip.
  • Significant upper lip thinning was observed in UCLP and BCLP groups.
  • Subnasal and superior labial sulcus areas were thicker in the CP group compared to BCLP and UCLP groups.

Conclusions:

  • Le Fort I osteotomy leads to predictable soft tissue thinning in the upper lip and perioral regions in cleft patients.
  • Soft tissue response varies significantly based on the type of cleft.
  • CP patients exhibit thicker soft tissues in certain areas compared to BCLP and UCLP patients.