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Updated: Feb 10, 2026
08:07
A Morphometric and Cellular Analysis Method for the Murine Mandibular Condyle
Published on: January 11, 2018
8.9K
Study of condylar positional changes after sagittal split osteotomy for mandibular advancement: A prospective cohort
Alberto Costas1, Jacinto F Sanromán1, Pilar Castro2
1Department of Oral and Maxillofacial Surgery (Head: Jacinto F Sanromán), POVISA Hospital, Salamanca 5, 36211 Vigo, Pontevedra, Spain.
Summary
Mandibular advancement surgery can cause predictable condylar changes, correlated with the extent of advancement. Maxillary surgery alone or with mandibular procedures does not significantly affect condylar position.
Area of Science:
- Orthognathic surgery
- Craniofacial surgery
- Oral and maxillofacial surgery
Background:
- Orthognathic surgery aims to correct skeletal discrepancies.
- Mandibular retrognathism often requires surgical advancement.
- Understanding condylar changes post-surgery is crucial for stability.
Purpose of the Study:
- To analyze morphologic and positional changes of mandibular condyles after orthognathic surgery.
- To investigate condylar behavior following mandibular advancement procedures.
- To assess the impact of maxillary surgery on condylar position.
Main Methods:
- Prospective cohort study of patients with mandibular retrognathism.
- Surgical groups included sagittal split osteotomies alone or combined with maxillary osteotomies.
- Computed tomography and cephalometric radiographs assessed condylar position and morphology pre- and post-surgery.
Main Results:
- In the study group, 8 condyles showed morphological changes; 17 exhibited displacements.
- Positional changes were often predictable and did not compromise mandibular stability.
- Maxillary surgery alone resulted in small, non-significant condylar displacements.
Conclusions:
- Condylar displacements after sagittal split osteotomies correlate with mandibular advancement magnitude.
- Mathematical formulas can predict these condylar changes.
- Maxillary osteotomies do not appear to influence condylar position in bimaxillary procedures.
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