안와내벽파열골절의 내시경적 사골동내 충전에 따른 안와용적 변화 = Orbital Volume Change Resulted from Packing in Ethmoidal Sinus for Correction of Isolated Medial Orbital Fractures

다국어 초록 (Multilingual Abstract)

Purpose: Endoscopic transnasal correction of the
medial orbital fractures cannot be enable to confirm the
reduction degree of orbital volume without imaging modalities.
We have intended through this study to make a
quantative analysis of preoperative orbital volume increment
and the reduction degree of that after ethmoidal
sinus packing by using CT scan.
Methods: In this retrospective study, 22 patients were
selected to evaluate the postoperative volume reduction,
who took 2 CT scans which are pre- and postoperative
under the same protocol. The postoperative CT scan
was carried out in about 5 days after the operation with
the packing inserted into ethmoidal sinus. The length of
bony defect on each section was measured by PACS
program and the area of defect was calculated by
summing lengths on each section multiplied by the
thickness of the section. When the outline of orbit on the
slice is drawn manually with a cursor, PACS program
measures the area automatically. Orbital volume was
calculated from the sum of the area multiplied by the
section thickness.
Results: The mean dimension of fractured walls was 2.86
± 0.99 ㎠. The mean orbital volume of the unaffected orbits
was 22.89 ± 2.15 ㎤ and that of the affected orbits was
25.62 ± 2.82 ㎤. The mean orbital volume increment of the
affected orbits was 2.73 ± 1.13 ㎤. After surgery, the mean
orbital volume of the unaffected orbits was 22.46 ± 2.73 ㎤
and the mean orbital volume decrease on the surgical side
was 2.98 ± 1.07 ㎤. The estimated correction rate was
118.30%.

참고문헌 (Reference)

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2 최종필, "경누구절개 접근법(Transcaruncular Approach)을 통한 안와내벽골절 정복" 대한성형외과학회 29 (29): 19-356, 2002

3 Chung WC, "Transnasal endoscopic reduction of medial orbital blowout fracture" 26 : 1101-, 1999

4 Whitehouse RW, "Prediction of enophthalmos by computed tomography after "blow out" orbital fracture" 78 : 618-, 1994

5 Kang JS, "Plastic Surgery. 3rd ed" Koonja 652-, 2004

6 Sanno T, "Endoscopic endonasal reduction for blowout fracture of the medial orbital wall" 112 : 1228-, 2003

7 Fan X, "Computer-assisted orbital volume measurement in the surgical correction of late enophthalmos caused by blowout fractures" 19 : 207-, 2004

8 Bae YC, "Comparison of the postoperative outcome in pure medial orbital fracture among three groups" 59 : 287-, 2007