کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
5870798 | 1141297 | 2016 | 9 صفحه PDF | دانلود رایگان |
عنوان انگلیسی مقاله ISI
Tissue loads applied by a novel medical device for closing large wounds
ترجمه فارسی عنوان
بارهای بافت توسط یک دستگاه پزشکی جدید برای بستن زخم های بزرگ اعمال می شود
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کلمات کلیدی
بافت نرم، مدل سازی عنصر محدود شلاق تنش، سیستم تسلیحاتی،
موضوعات مرتبط
علوم پزشکی و سلامت
پزشکی و دندانپزشکی
مراقبت های ویژه و مراقبتهای ویژه پزشکی
چکیده انگلیسی
Closure of large soft tissue defects following surgery or trauma as well as closure of large chronic wounds constitutes substantial but common reconstructive challenges. In such cases, an attempt to use conventional suturing will result in high-tension closure, therefore alternative external skin stretching systems were developed. These types of devices were meant to reduce local mechanical loads in the skin and the underlying tissues, taking advantage of the viscoelastic properties of the skin, especially mechanical creep, for primary wound closure. Studies have shown the clinical advantages of skin stretching systems, however, quantitative bioengineering models, demonstrating closure of large wounds, are lacking. Here we present finite element (FE) modeling of the TopClosure® tension relief system (TRS) and its biomechanical efficacy in three (real) wound cases, compared with the alternative of a conventional surgical suturing closure technique. Our simulations showed that peak effective stresses on the skin were at least an order of magnitude greater (and sometimes nearly 2 orders-of-magnitude greater) when tension sutures were used with respect to the corresponding TRS data. For the tension suture simulations, the tensile stress was in the range of 415-648Â MPa and in the TRS simulations, it was 16-30Â MPa. Based on the present computational FE modeling, the TRS reduces localized tissue deformations and stress concentrations in skin and underlying tissues while closing large wounds, compared to the deformations and stresses that are inflicted during the process of suturing. This substantial reduction of loads allows surgeons to better employ the viscoelastic properties of the skin for primary wound closure.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Journal of Tissue Viability - Volume 25, Issue 1, February 2016, Pages 32-40
Journal: Journal of Tissue Viability - Volume 25, Issue 1, February 2016, Pages 32-40
نویسندگان
Rona Katzengold, Moris Topaz, Amit Gefen,