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Abstract
Purpose: Frameless surgical navigation is increasingly used in Neurosurgery and ENT. However, its application in orbital surgery is not well studied. The goal of this study is to evaluate whether its use will be useful and time efficient. Subjects and methods: A prospective interventional non-controlled non-randomized case series study design was carried on fifteen patients with different orbital disorders. Results: Promising results were seen in orbital wall fracture and well circumscribed orbital masses. However, in ill-defined infiltrating lesions, total resection could not be achieved. Total excision was seen in 70% of cases of orbital masses.The mean of maintenance time percentage compared to the total operating time was 46.7% with SD +/-13.85 that lead to relatively longer total operating time, but as more cases were performed, it decreased gradually. Conclusion: Navigation is a great intraoperative tool. However, it should not be a substitution for a detailed knowledge of the facial anatomy and surgical skills. It cannot be yet considered the standard of care for patients with different orbital lesions and fractures because its usage prolongs the total operating time. However, it was found to be useful in complicated cases as orbits that were previously operated on where normal landmarks may not exist and in severely traumatized orbits