Related Experiment Video
Updated: Jun 22, 2025
08:18
Three-Dimensional Reconstruction of Orbital Fractures
Published on: May 16, 2025
160
An Introduction to the Orbital Buttresses.
Bashar A Hassan1,2, Adam D Sylvester3, Daniel J Wescott4
1From the Division of Plastic and Reconstructive Surgery, R Adams Cowley Shock Trauma Center.
Plastic and Reconstructive Surgery
|July 5, 2024
Summary
Researchers identified five buttresses within the internal orbit, crucial for facial structure. Understanding these orbital buttresses aids surgical repair and reconstruction of facial fractures.
Area of Science:
- Anatomy
- Orthopedic Surgery
- Radiology
Background:
- Facial buttresses provide skeletal support and protection.
- Damage to facial buttresses necessitates surgical repair.
- The existence and characteristics of internal orbital buttresses were previously undescribed.
Purpose of the Study:
- To identify and describe the buttresses of the internal orbit.
- To analyze the frequency of orbital buttress fractures in patients with orbital trauma.
Main Methods:
- Microcomputed tomography imaging of 10 human cadaver skulls.
- Image processing, thickness, and heat mapping using Avizo and ImageJ software.
- Review of computed tomography scans from 593 patients with orbital fractures.
Main Results:
- Five internal orbital buttresses were identified: superomedial fronto-ethmoidal strut with deep orbital buttress, inferomedial strut with posterior ledge, inferior orbital fissure, sphenoid-frontal superolateral strut, and sphenoid lip.
- The mean orbital buttress thickness was 1.36 mm.
- Orbital buttresses were fractured in 35% of analyzed orbits; the inferomedial strut with posterior ledge was most commonly fractured (14.4%).
Conclusions:
- This study provides the first description of internal orbital buttresses.
- Orbital buttress anatomy is vital for reconstructive surgery, including fracture repair and oncologic procedures.
- Knowledge of orbital buttresses is essential for surgical planning, implant placement, and restoring orbital function and aesthetics.
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