Maxillary quadrangular Le Fort I osteotomy: long-term skeletal stability and clinical outcome

Area of Science:

• Oral and Maxillofacial Surgery
• Orthognathic Surgery
• Craniofacial Surgery

Background:

• Midface hypoplasia and skeletal malocclusion require advanced surgical correction.
• The Le Fort I osteotomy is a common procedure for correcting midfacial deformities.
• Assessing long-term stability and patient satisfaction is crucial for treatment evaluation.

Purpose of the Study:

• To evaluate the long-term skeletal stability of the quadrangular Le Fort I osteotomy.
• To determine patient experience and satisfaction following the procedure.
• To compare stability in cleft and non-cleft patients, with and without bone grafting.

Main Methods:

• Retrospective cohort study of patients with midface deficiency and Class III malocclusion.
• Cephalometric analysis to assess long-term vertical and horizontal skeletal stability.
• Questionnaire to measure patient overall experience and satisfaction.

Main Results:

• High skeletal stability was observed in both horizontal and vertical dimensions.
• No significant difference in horizontal stability was found between cleft and non-cleft patients.
• Patient satisfaction with the overall treatment result was high, averaging 9.2 out of 10.

Conclusions:

• The quadrangular Le Fort I osteotomy demonstrates functional stability and surgical predictability.
• The procedure is effective for both cleft and non-cleft patients with midfacial deficiency.
• Autogenous iliac bone graft stabilization did not significantly impact horizontal skeletal stability.