Finite Element Modelling of Le Fort I Osteotomy Fixation : PSI vs Miniplates

Centre Hospitalier Universitaire de Nice

Status: Not yet enrolling

Conditions: Malocclusion

Treatments: Other: In silico orthognathic surgery with customized implants digital only on 3D scanners

Study type: Observational

Funder types: Other

Identifiers

NCT07365657

26IUFC01

Details and patient eligibility

About

This study aimed to evaluate the biomechanical performance of patient-specific versus conventional fixation for Le Fort I osteotomy using subject-specific finite element models derived from real surgical plans. Two distinct clinical scenarios-a minor advancement without impaction and a moderate advancement with posterior impaction-were analyzed to determine how surgical movements influence implant stress, bone stress, and maxillary micromotion. By combining surgical planning with validated computational modeling, this work provides clinically relevant insight to optimize PSI design and guide fixation strategy selection in orthognathic surgery.

Enrollment: 2 estimated patients

Sex: All

Ages: 18+ years old

Volunteers: No Healthy Volunteers

Inclusion criteria

• Patient operated on By Pr SAVOLDELLI.
• Patient undergoing patient-specific orthognathic surgery.
• Access to numerical (digital) planning.

Exclusion criteria

• Previous maxillo-facial trauma.
• Facial cleft.

Trial design

2 participants in 2 patient groups

Type II maloclusion

Description:

2 patients : one with type II maloclusion, one with type III maloclusion who previously undergone orthognathic surgery

Treatment:

Other: In silico orthognathic surgery with customized implants digital only on 3D scanners

Type III maloclusion

Description:

2 patients : one with type II maloclusion, one with type III maloclusion who previously undergone orthognathic surgery

Treatment:

Other: In silico orthognathic surgery with customized implants digital only on 3D scanners