کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
4095604 1268542 2014 7 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
Smaller Interval Distractions May Reduce Chances of Growth Rod Breakage Without Impeding Desired Spinal Growth: A Finite Element Study
ترجمه فارسی عنوان
حواس پرتی فاصله زمانی کمتر می تواند احتمال شکستگی رادیکال را کاهش دهد بدون مانع رشد مورد انتظار اسپینال: یک مطالعه عنصر محدود
کلمات کلیدی
اسکولیوز نوجوانان فرکانس منحرف کننده، میله های رشد مغناطیسی، فاصله حواس پرتی، مطالعه عنصر محدود
موضوعات مرتبط
علوم پزشکی و سلامت پزشکی و دندانپزشکی ارتوپدی، پزشکی ورزشی و توانبخشی
چکیده انگلیسی

BackgroundGrowth rods allow regular distraction of the spine to compensate for growth. Traditionally such distractions are performed every 6 months via open surgery. However with the advent of minimally invasive techniques like magnetically controlled growing rods, the distractions can be performed non-surgically. This also implies that the interval of distraction could be changed or customized based on individual patient's need.HypothesisIn this study we have hypothesized that the distraction at shorter intervals reduces the stresses on the rods which in turn reduces the chance of rod failure.ObjectiveA finite element model of a juvenile spine was instrumented with growth rods and distractions were applied at different frequencies (2 months, 3 months, 6 months, and 12 months) for a period of two years to study the effects of frequency of distraction on maximum von Mises stresses on the rods for different loading conditions were studied.ResultsThe stresses on the rods were highest for 12-month distraction (2 distractions in 2 years) and lowest for 2-months distraction (12 distractions in 2 years).ConclusionIt was found that the shorter intervals of distraction led to reduction of stresses on the rod for same spinal height gain in two years.

ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Spine Deformity - Volume 2, Issue 6, November 2014, Pages 430–436
نویسندگان
, , , ,