The impact of polydioxanone (PDS) foil thickness on reconstruction of the orbital geometry after isolated orbital floor fractures.

IF 16.4 1区 化学 Q1 CHEMISTRY, MULTIDISCIPLINARY
Philipp Winnand, Mark Ooms, Nassim Ayoub, Daniel Schick, Felix Paulßen von Beck, Frank Hölzle, Thomas Mücke, Ali Modabber
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引用次数: 0

Abstract

Purpose: The orbital floor is frequently involved in head trauma. Current evidence on the use of reconstruction materials for orbital floor repair is inconclusive. Accordingly, this study aimed to compare the impact of polydioxanone (PDS) foil thickness on reconstruction of the orbital geometry after isolated orbital floor fractures.

Methods: Standardized isolated orbital floor fractures were symmetrically created in 11 cadaver heads that provided 22 orbits. PDS foils with thicknesses of 0.25-0.5 mm were inserted. Computed tomography (CT) scans of the native, fractured, and reconstructed orbits were obtained, and orbital volume, orbital height, and foil bending were measured.

Results: Orbital volume and height significantly (p < 0.01) increased after the creation of isolated orbital floor fractures and significantly (p = 0.001) decreased with overcorrection of the orbital geometry after orbital floor reconstruction with PDS 0.25 mm or PDS 0.5 mm. The orbital geometry reconstruction rate did not differ significantly with respect to foil thickness. However, compared to PDS 0.5 mm, the use of PDS 0.25 mm resulted in quantitatively higher reconstructive accuracy and a restored orbital volume that did not significantly differ from the initial volume.

Conclusion: Orbital floors subjected to isolated fractures were successfully reconstructed using PDS regardless of foil thickness, with overcorrection of the orbital geometry. Due to its lower flexural stiffness, PDS 0.25 mm appeared to provide more accurate orbital geometry reconstruction than PDS 0.5 mm, although no significant difference in reconstructive accuracy between PDS 0.25 mm and PDS 0.5 mm was observed in this cadaveric study.

Abstract Image

聚二氧酮(PDS)箔厚度对孤立性眶底骨折后重建眼眶几何形状的影响。
目的:头部创伤经常涉及眶底。目前关于使用重建材料进行眶底修复的证据尚无定论。因此,本研究旨在比较聚二氧酮(PDS)箔厚度对孤立性眶底骨折后眶几何形状重建的影响:方法:在提供 22 个眼眶的 11 个尸体头部对称地创建标准化的孤立性眶底骨折。插入厚度为 0.25-0.5 毫米的 PDS 箔。对原生眼眶、骨折眼眶和重建眼眶进行计算机断层扫描(CT),并测量眼眶体积、眼眶高度和箔片弯曲度:结果:眶体积和眶高均有明显变化(P<0.05):使用 PDS 成功重建了发生孤立性骨折的眼眶底板,无论箔片厚度如何,眼眶几何形状都得到了过度矫正。由于 PDS 0.25 mm 的抗弯刚度较低,因此与 PDS 0.5 mm 相比,PDS 0.25 mm 似乎能提供更精确的眼眶几何形状重建,不过在这项尸体研究中并未观察到 PDS 0.25 mm 和 PDS 0.5 mm 在重建精确度上存在显著差异。
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来源期刊
Accounts of Chemical Research
Accounts of Chemical Research 化学-化学综合
CiteScore
31.40
自引率
1.10%
发文量
312
审稿时长
2 months
期刊介绍: Accounts of Chemical Research presents short, concise and critical articles offering easy-to-read overviews of basic research and applications in all areas of chemistry and biochemistry. These short reviews focus on research from the author’s own laboratory and are designed to teach the reader about a research project. In addition, Accounts of Chemical Research publishes commentaries that give an informed opinion on a current research problem. Special Issues online are devoted to a single topic of unusual activity and significance. Accounts of Chemical Research replaces the traditional article abstract with an article "Conspectus." These entries synopsize the research affording the reader a closer look at the content and significance of an article. Through this provision of a more detailed description of the article contents, the Conspectus enhances the article's discoverability by search engines and the exposure for the research.
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