Journal of the Korean Ophthalmological Society 2003;44(7):1489-1495.
Published online July 1, 2003.
Factors which Influence Postoperative Enophthalmos in Inferior Orbital Wall Fractures.
Su Young Kim, Sang Ho Moon, Jae Woo Jang
Department of Ophthalmology, Ajou University College of Medicine, Suwon, Korea. jwjang@madang.ajou.ac.kr
안와 하벽골절 수술환자에서 안구함몰에 영향을 미치는 요소
김수영 ( Su Young Kim ) , 문상호 ( Sang Ho Moon ) , 장재우 ( Jae Woo Jang )
Abstract
PURPOSE
To determine the relationship of postoperative enophthalmos with preoperative soft tissue herniation, fracuture size, time interval between trauma and surgery in inferior orbital wall fracture. METHODS: 37 patients operated for pure blowout fractures of the orbital floor from March 2001 through August 2002 were reviewed retrospectively. Fractures were classified as either A or B, based on the degree of soft tissue herniation, and also categorized as type I (less than one-fourth floor fractured and trapdoor fracture), type II (between one-fourth and one-half floor fractured) and type III (greater than one-half floor fractured) in preoperative coronal computed tomography. Preoperative and postoperative enophthalmos was quantified by Hertel exophthalmometry. The interval between trauma and surgery was also considered. RESULTS: Among the patients with postoperative enophthalmos less than 0.5 mm, 18 patients were type A and 12 patients were type B. 14 patients were categorized as type II and 16 as type III. Among the patients with postoperative enophthalmos of 1.0 mm , 3 patients were type A and 2 patients were type B. 3 patients were classsified as type II and 2 as type III. Among the patients with postoperative enophthalmos of 1.5 mm, each one patient was type A and type B. 2 patients were categorized as type III, but there was no type II. CONCLUSIONS: The degree of postoperative enophthalmos is not related with the degree of soft tissue herniation and fracture size. However, it is negatively associated with time interval between trauma and surgery(p=0.006).
Key Words: Blowout fracture;Postoperative enophthalmos;Soft tissue herniation


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