Modified Le Fort I step osteotomy for improvement of paranasal flatness in maxillary deficiency: Technical note and series of 24 cases - 27/11/19
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Abstract |
Introduction |
To describe a modified Le Fort I step osteotomy for the improvement of paranasal flatness in maxillary deficiency and to evaluate postoperative complications as well as post-treatment relapse.
Patients and Methods |
In this retrospective case series study, clinical data of all patients with maxillary deficiency associated with a Class III malocclusion who underwent a modified Le Fort I step osteotomy were reviewed. The primary and secondary outcome variables were, respectively, the improvement of paranasal flatness as evaluated by the clinical analysis of the cheekbone-nasal base-lip contour (CP-Nb-LC), and postoperative complications as well as post-treatment relapse. Other variables included age, gender, and additional surgical procedures. Descriptive statistics were performed.
Results |
The sample was composed of 24 patients. Paranasal flatness was corrected with the reestablishment of an harmonious convex cheekbone-nasal base-lip contour in all patients, who were satisfied with the esthetic result. Two patients (8%) had discomfort associated with the paranasal plates. One of these also had a unilateral nasolacrimal duct dysfunction with occasional bothersome epiphora that resolved after plate removal. Two patients (8%) had maxillary sinusitis that resolved rapidly following medical treatment. One patient (4%) had persistent minor infraorbital nerve hypoesthesia. No occlusal relapse or pseudarthrosis occurred.
Conclusion |
The modified Le Fort I step osteotomy approach is a valuable method for the improvement of paranasal flatness in maxillary deficiency.
Le texte complet de cet article est disponible en PDF.Keywords : Le Fort I osteotomy, Maxillary deficiency, Paranasal flatness, Maxillary osteotomy
Plan
Vol 120 - N° 6
P. 559-565 - décembre 2019 Retour au numéroBienvenue sur EM-consulte, la référence des professionnels de santé.
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