الفهرس 
IntroductionOnly 14 pages are availabe for public view
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Abstract
Accurate restoration of the orbital volume after trauma is important factor for esthetic and functional results. The present study used titanium mesh for this purpose through two different techniques. 14 patients with unilateral orbital floor fracture were included and divided into 2 equal groups:
conventional group: using manual adaptation to the titanium mesh intraoperatively.
STL group: using STL model based on computer assisted technique for adapting the titanium mesh preoperatively.
Pre and postoperative high resolution CT scans were done. STL group used specialized software for mirroring the intact side onto the fractured one and printing the new file into STL model for adapting the titanium mesh preoperatively. While in the manual group, the titanium mesh adapted intraoperatively.
Pre and postoperative orbital volume assessment was done for intact, fractured, and reconstructed orbits. In addition, CT based linear measurements of the enophthalmos degree were recorded pre and postoperatively.
The results revealed that both techniques lead to a statistically significant decrease in orbital volume following reconstruction. However, there is no statistically significant difference between the accuracy of both techniques in posttraumatic reconstruction. The results also showed insignificant decrease in the degree of enophthalmos and no statistically difference between the two groups.
Conclusions of the present study includes the followings:
1-Both techniques lead to significant correction of the orbital volume without significant improvement in the globe projection.
2-Conventional technique is still a valid and cheap method among the attractive new techniques.
3-STL technique is helpful in the cases presented with massive orbital disruption and / or malunion. It offers less operative time and less tissue manipulation.
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