کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
1760569 | 1019609 | 2017 | 10 صفحه PDF | دانلود رایگان |
عنوان انگلیسی مقاله ISI
Determination of the Augmentation Effects of Hyaluronic Acid on Different Heel Structures in Amputated Lower Limbs of Diabetic Patients Using Ultrasound Elastography
ترجمه فارسی عنوان
تعیین تأثیر تقویت اسید هیالورونیک بر ساختارهای پاشنه ای مختلف در اندام تحتانی آمبوتیک بیماران دیابتی با استفاده از الاستوگرافی اولتراسوند
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کلمات کلیدی
پای دیابتی، اسید هیالورونیک، بیومکانیک، الستوگرافی، سونوگرافی،
موضوعات مرتبط
مهندسی و علوم پایه
فیزیک و نجوم
آکوستیک و فرا صوت
چکیده انگلیسی
This study measured tissue properties of different anatomies of heels in amputated lower limbs of diabetic patients before and after hyaluronic acid (HA) or normal saline (NS) injections. Seven amputated lower limbs from six diabetic patients constituted the experimental group and one amputated lower limb from a diabetic patient served as the control. The limbs were placed in a fixation platform. A 5-12 MHz linear-array ultrasound transducer controlled by a stepping motor was used to load and unload tested heels. The loading-unloading velocity was 6 mm/s and the maximum loading stress was 178 kPa. Loading-unloading tests were performed before and after 1 mL HA injections into heels in the experimental group. The control limb underwent the same test before and after 1 mL NS injection. The unloaded thickness and Young's modulus of the macrochambers, microchambers and heel pads were determined before and after the interventions. The unloaded thickness of the macrochambers and the heel pad increased significantly (p = 0.012) after HA injection. The Young's modulus of the macrochambers decreased nonsignificantly after HA injections. Similar thickness and tissue stiffness changes were observed in the control limb. The baseline heel-pad energy dissipation ratio (EDRhp) was 81.3 ± 1.3% and decreased significantly (p = 0.012) to 73.1 ± 1.7% after HA injections. The EDRhp in the control increased after NS injection. Histologic examinations revealed localized HA accumulation in the macrochambers with an extension into the adjacent fibrous septa. Injection of HA can increase tissue thickness and enhance heel-pad tissue resilience.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Ultrasound in Medicine & Biology - Brought to you by:College of Engineering Chengannur - 'Renewal due by 31 Dec 2017'
Journal: Ultrasound in Medicine & Biology - Brought to you by:College of Engineering Chengannur - 'Renewal due by 31 Dec 2017'
نویسندگان
Chih-Chin Hsu, Carl Pai-Chu Chen, Shih-Cherng Lin, Wen-Chung Tsai, Hsien-Tao Liu, Yi-Chia Lin, Hsin-Jung Lee, Weng-Pin Chen,