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Microorbitalism: a technique for orbital rim expansion.
K Elisevich1, U Bite, R Colcleugh
1Department of Clinical Neurological Sciences, Victoria Hospital, London, Ont., Canada.
Plastic and Reconstructive Surgery
|October 1, 1991
Summary
This study introduces a novel orbital expansion technique using frontosphenoid craniectomy for better ocular prosthesis fit. This method simplifies prosthesis placement in microorbitalism patients, yielding excellent results.
Area of Science:
- Ophthalmology
- Neurosurgery
- Craniofacial Surgery
Background:
- Microorbitalism, often due to congenital anophthalmia, presents challenges for ocular prosthesis fitting.
- Existing methods for orbital aperture enlargement can be complex and invasive.
Purpose of the Study:
- To describe a straightforward surgical technique for orbital aperture expansion.
- To facilitate the precise placement of ocular prostheses and tissue expanders.
Main Methods:
- A single burr hole craniectomy of the frontosphenoid bone releases superolateral and inferolateral orbital margins.
- Rotatory displacement of bone segments achieves vertical and horizontal marginal lengthening.
- Fixation with wire and plate-and-screw, along with supraorbital rim craniectomy, ensures adequate fit.
Main Results:
- The technique was successfully applied to patients with microorbitalism over three years.
- No complications were reported, and excellent functional and aesthetic results were achieved.
- Preoperative and postoperative 3D CT reconstructions demonstrate craniofacial skeletal changes.
Conclusions:
- This orbital expansion technique offers a simplified and effective solution for microorbitalism.
- It improves surgical access for ocular prostheses and tissue expanders.
- The method shows promise for managing congenital anophthalmia-related orbital deformities.