Mandibular ramus remodeling after vertical osteotomy: a three-dimensional quantitative and qualitative assessment with sequential segmental-marrow superimposition.

ABSTRACT:

Background

The intraoral vertical ramus osteotomy (IVRO) is a surgical technique for prognathic or asymmetric mandible. We wanted to quantitatively and qualitatively analyze the three-dimensional (3D) remodeling pattern of the mandibular ramus one year after IVRO.

Methods

We reconstructed 3D mandibular models using 3D CT data from 108 IVRO hemi-mandibles of 54 subjects. The immediate postoperative (Imm) proximal and distal segments were separated and individually superimposed to one-year postoperative (Post) mandible by employing a direct segmental-isolated marrow superimposition.

Results

Analysis showed extensive regional bone resorption and apposition resulting in a remodeled Post ramus; the more overlapping patterns of group of A (lateral type) and B (lateral/proxi

SUBMITTER: Lee SH 

PROVIDER: S-EPMC12265317 | biostudies-literature | 2025 Jul

REPOSITORIES: biostudies-literature