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Related Concept Videos

Accessory Structures of the Eye01:17

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Optical perception, or vision, is an extraordinary sense dependent on converting light signals received via the ocular organs. These organs, known as eyes, are securely positioned within the bony cavities of the skull, called orbits. The orbits serve a dual purpose: a protective shield for the ocular globes and a stable attachment point for the soft ocular tissues. The eye's external protective mechanisms include the eyelids, which are edged with lashes that act as a barrier against foreign...
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Related Experiment Video

Updated: Nov 16, 2025

Three-Dimensional Reconstruction of Orbital Fractures
08:18

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Published on: May 16, 2025

454

Computer-Assisted Secondary Orbital Reconstruction.

Daman D Singh1, Lara Schorn1, E Bradley Strong2

  • 1Department of Oral-, Maxillo- and Plastic Facial Surgery, Heinrich-Heine-University Duesseldorf, Duesseldorf, Germany.

Craniomaxillofacial Trauma & Reconstruction
|February 22, 2021
PubMed
Summary
This summary is machine-generated.

Secondary orbital reconstruction using patient-specific implants (PSIs) significantly improves orbital volume and reduces symptoms. This study suggests PSIs are a reliable option for complex orbital reconstructions.

Keywords:
computer-assisted surgerydiplopiaenophthalmosorbital reconstructionpatient-specific implantselective laser meltingthree-dimensional mesh

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Area of Science:

  • Ophthalmology
  • Plastic Surgery
  • Biomedical Engineering

Background:

  • Secondary orbital reconstruction aims to restore function and aesthetics after initial surgery.
  • Complications like enophthalmos and diplopia necessitate revision procedures.
  • Patient-specific implants (PSIs) offer a tailored approach to complex orbital defects.

Purpose of the Study:

  • To evaluate the efficacy of selective laser-melted patient-specific implants (PSIs) in secondary orbital reconstruction.
  • To assess the functional and aesthetic outcomes of PSI use in revision orbital surgery.
  • To determine if PSIs are a suitable option for correcting enophthalmos, diplopia, and motility issues.

Main Methods:

  • A case-control study involving 33 patients requiring secondary orbital reconstruction.
  • Pre- and post-operative CT/CBCT scans were analyzed for intraorbital volume and infraorbital angle changes.
  • Clinical outcomes, including symptoms and eye motility, were assessed using standardized protocols.

Main Results:

  • Significant improvements in intraorbital volumes were observed post-reconstruction.
  • A notable reduction in clinical symptoms such as enophthalmos and diplopia was achieved.
  • The study demonstrated positive functional and aesthetic outcomes following PSI use.

Conclusions:

  • Selective laser-melted PSIs are effective for secondary orbital reconstruction.
  • This technique can reliably address issues like enophthalmos, diplopia, and limited eye motility.
  • PSIs and titanium spacers represent a viable standard approach for revision orbital surgery.