کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
4073010 1266968 2015 8 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
Role of the interosseous membrane and annular ligament in stabilizing the proximal radial head
ترجمه فارسی عنوان
نقش غشاء درونی و حلقه ای در ایجاد ثبات سر رادیال پروگزیمال
کلمات کلیدی
مطالعه علمی پایه جابجایی سر رشته ای بیومکانیک، رباط حلقوی، غشاء درونی
موضوعات مرتبط
علوم پزشکی و سلامت پزشکی و دندانپزشکی ارتوپدی، پزشکی ورزشی و توانبخشی
چکیده انگلیسی

HypothesisThe purpose of our study was to determine the relative contributions of the annular ligament, proximal band, central band, and distal band of the interosseous membrane in preventing dislocation of the proximal radius.MethodsIn part 1 of the study, 8 forearms were loaded transversely with the forearm intact, and the central band, proximal band, and annular ligament were sequentially sectioned to determine the percentage contribution of each structure in preventing transverse radial displacement. In part 2, 12 forearms were cyclically supinated and pronated while optical sensors measured radial and ulnar motion. Transverse radial head motion was computed as the distal band, central band, and proximal band (and annular ligament) were sequentially sectioned.ResultsIn part 1, there was no significant difference in the percentage contribution of each structure in preventing radial transverse displacement. In part 2, only after sectioning of the central band did significant radial head displacement occur. Greater displacements occurred in supination than in pronation. Dislocation of the proximal radius occurred in 2 arms after sectioning of all 3 structures.DiscussionUnder pure transverse displacement, the central band, annular ligament, and proximal band equally contributed to stabilizing the radius. However, during forearm rotation, the central band contributed more to radial head stability than the annular ligament and proximal band. Our study contributes to our knowledge of forearm biomechanics, demonstrating the importance of the central band in providing proximal radial head stability. Forceful supination should be avoided after surgical procedures designed to stabilize the radial head.

ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Journal of Shoulder and Elbow Surgery - Volume 24, Issue 12, December 2015, Pages 1926–1933
نویسندگان
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