الفهرس 
I- IntroductionOnly 14 pages are availabe for public view
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Abstract
It was very important to clarify the following items in our review of
literature; the anatomy of the orbit from its clinical aspect, differential
diagnosis of the different orbital disorders especially from the ORL view,
previous experiences of the endoscopic endonasal orbital decompression
and its recorded complications and how to manage and finally the
endoscopic endonasal orbital reconstruction and the summary of other
approaches of orbital reconstruction and different methods of fracture
bone support.
In our study the aim of work was to clarify the role of endonasal
endoscopic surgery in both orbital decompression and reconstruction of
different causes and to evaluate the outcomes from this surgery.
Our subjects were 54 patients divided into 5 groups; infection,
inflammatory non infectious, neoplastic, congenital and traumatic groups
according to the etiological causes. The main presentations in our patients
were proptosis, vision impairment and limited ocular motility with
diplopia.
Our methods were pre and post operative history taking, radiological
investigations include CT and MRI scan nose, paranasal sinuses, orbit
and skull base, physical examinations include general, ophthalmic and
ORL examination. Endoscopic endonasal surgery were done for all
patient’s groups which aimed to orbital decompression in both intraconal
and exrtaconal cases of orbital compression and the second aim was
orbital reconstruction in traumatic group in both blowout fracture and
trapdoor fracture.
Summary and Conclusion
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Results were calculated according to our study aimed to evaluate the
outcomes of the endoscopic endonasal orbital decompression and orbital
reconstruction. Our post operative outcomes were the proptosis reduction,
vision improvement, ocular motility and diplopia.
We founded a significant age and sex distribution among the studied
groups with a mean age (29.6 years). The mean age was younger in
congenital group (group 4) and the mean age was older in infection group
(group 1).
Our result showed a highly significant postoperative proptosis degree
reduction in both infection and congenital groups and a significant
postoperative proptosis reduction in the other groups.
We founded that the mean of the postoperative proptosis reduction
degree is highest in the infection group (4 mm) followed by the
congenital group (3.8 mm).
The most resolved sign in cases of orbital endoscopic decompression
and reconstruction was the proptosis reduction degree followed by
improved ocular motility then absence of dipolopia and finally improved
vision.
Operative or post operative complications which founded in our
study were epistaxis in 2 patients, nasal adhesions in 3 patients,
enophthalmos in 2 patients and diplopia in 9 patients which recorded as a
complication not present preoperative or increased post operative.