## 3 Results  
A total of 32 patients was included in this study, 16 in each group. The baseline characteristics and demographic data of the patients are summarized in Table 1. The groups had no differences in age, sex, lesion side, cause of trauma, operational delay, interval of CT, and follow-up period at the outpatient clinic.  
The mean volumes (cm\({}^{3}\)) of the normal side, preoperative lesion side, and postoperative lesion side of group A were 21.6 \(\pm\) 2.2, 23.9 \(\pm\) 2.1, and 21.9 \(\pm\) 2.1, respectively, and those of group B were 20.6 \(\pm\) 3.1, 23.1 \(\pm\) 3.6, and 21.4 \(\pm\) 3.2. No variable was statistically different between groups (Table 2).  
The volume of the preoperative lesion side was significantly different from the volume of the normal side or postoperative lesion side within each group. The volume of the  
\begin{table}
\begin{tabular}{l c c c} \hline \hline  & **Group A** & **Group B** & \(p\)**Value** \\ \hline
**Age, year** & 34.1 \(\pm\) 16.5 & 34.6 \(\pm\) 17.3 & 0.926 \\
**Sex** & 0.433 \\
**Male** & 13/16 (81.3\%) & 10/16 (62.5\%) & \\
**Female** & 3/16 (18.8\%) & 6/16 (37.5\%) & \\
**Lesion side** & & 0.716 \\
**Rt.** & 5/16 (31.3\%) & 7/16 (43.8\%) & \\
**Lt.** & 11/16 (68.8\%) & 9/16 (56.3\%) & \\
**Cause** & & 0.399 \\
**Fall down** & 5/16 (31.3\%) & 2/16 (12.5\%) & \\
**Assault** & 9/16 (56.3\%) & 9/16 (56.3\%) & \\
**Accidental bump** & 2/16 (12.5\%) & 4/16 (25.0\%) & \\
**Traffic accident** & 0/16 (0.0\%) & 1/16 (6.3\%) & \\
**Operation delay, day** & 7.6 \(\pm\) 3.1 & 7.9 \(\pm\) 2.9 & 0.773 \\
**Interval of CT, day** & 69.6 \(\pm\) 49.0 & 69.5 \(\pm\) 48.9 & 0.994 \\
**OPD F/U, month** & 5.1 \(\pm\) 3.3 & 5.4 \(\pm\) 5.5 & 0.881 \\
**Pre-operative symptoms** & & & \\
**Diplopia** & 2/16 (12.5\%) & 2/16 (12.5\%) & \\
**Discomfort** & 3/16 (18.8\%) & 2/16 (12.5\%) & \\
**Exophilalmos** & 0/16 (0\%) & 0/16 (0\%) & \\
**Post-operative symptoms** & & & \\
**Diplopia** & 1/16 (6.3\%) & 1/16 (6.3\%) & \\
**Discomfort** & 0/16 (0\%) & 0/16 (0\%) & \\
**Exophilalmos** & 0/16 (0\%) & 0/16 (0\%) & \\ \hline \hline \end{tabular}
\end{table}
Table 1: The baseline characteristics and demographic data of the patients.  
\begin{table}
\begin{tabular}{c c c c} \hline \hline
**Volume (cm\({}^{3}\))** & **Group A** & **Group B** & \(p\)**-Value** \\ \hline
**V0** & 21.6 \(\pm\) 2.2 & 20.6 \(\pm\) 3.1 & 0.336 \\
**Vpre** & 23.9 \(\pm\) 2.1 & 23.1 \(\pm\) 3.6 & 0.420 \\
**Vpost** & 21.9 \(\pm\) 2.1 & 21.4 \(\pm\) 3.2 & 0.628 \\ \hline \hline \end{tabular}
\end{table}
Table 2: Surgical outcomes: comparison of group A and group B. (V0: orbital volume of the normal side; Vpre: preoperative orbital volume of the lesion side; Vpost: postoperative orbital volume of the lesion side).  
None of these patients had exophthalmos preoperatively or postoperatively. Three of 16 patients in group A had ocular discomfort before surgery, but the discomfort resolved after surgery. Two of 16 patients in group B had ocular discomfort before surgery, but the discomfort resolved after surgery. Two of 16 patients in group A complained of diplopia before surgery, but only one complained of this after surgery. In group B patients, two of 16 complained of diplopia before surgery, but only one complained of this after surgery (Table 1).