J Korean Ophthalmol Soc.  2014 Mar;55(3):337-342. 10.3341/jkos.2014.55.3.337.

Evaluation of Stereotactic Navigation During Orbital Decompression in Thyroid-Associated Orbitopathy Patients

Affiliations
  • 1Department of Ophthalmology, Chung-Ang University College of Medicine, Seoul, Korea. lk1246@hanmail.net

Abstract

PURPOSE
To evaluate the use of stereotactic navigation during orbital decompression surgery.
METHODS
We conducted a retrospective analysis of 27 patients (48 orbits) with thyroid-associated orbitopathy who underwent orbital decompression. Stereotactic navigation was performed on 28 orbits of 15 patients, and orbital decompression surgery without navigation was performed on 20 orbits of 12 patients. The changes in medial wall, lateral wall and inferior wall orbital volume in CT scans and horizontal and vertical eyeball deviation after surgery were analyzed in the 2 patient groups.
RESULTS
The mean decompressed volume of orbits was significantly increased in the lateral wall decompression with stereotactic navigation patient group than without stereotactic navigation (p < 0.05, p = 0.025). However, in the inferior wall and the medial wall decompression, there was no significant difference between the 2 groups. The changes of horizontal and vertical deviation were not significant between the 2 groups and no patient experienced neural damage.
CONCLUSIONS
The stereotactic navigation during lateral orbital wall decompression is a safe and effective method for inducing greater decompressed volume.

Keyword

Computed tomography; Lateral wall decompression; Navigation; Orbital decompression
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