کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
4072247 1604640 2007 4 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
Scanning electron microscopic findings of the gliding surface of the a1 pulley in trigger fingers and thumbs
موضوعات مرتبط
علوم پزشکی و سلامت پزشکی و دندانپزشکی ارتوپدی، پزشکی ورزشی و توانبخشی
پیش نمایش صفحه اول مقاله
Scanning electron microscopic findings of the gliding surface of the a1 pulley in trigger fingers and thumbs
چکیده انگلیسی
The gliding surface of the A1 pulley was studied in 20 cases of primary trigger finger by scanning and transmission electron microscope. In 12 normal specimens, the whole deep surface was covered uniformly by an amorphous extracellular matrix. In the pathological samples, there was the same general surface appearance but, also, areas, varying in shape and dimension where loss of the extracellular matrix had exposed the collagen fibres and a few cells of the middle layer of the pulley. There were also changes typical of “chondroid-metaplasia”. These data were confirmed by transmission electron microscopy. The fragmented areas are probably the result of altered forces of friction between the pulley and the flexor tendon and may be the “gate” through which the forces of friction cause chondroid-metaplasia in the underlying fibrous tissue, a phenomenon recognised to be one step in the pathogenesis of trigger finger.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: The Journal of Hand Surgery: European Volume - Volume 32, Issue 4, August 2007, Pages 384-387
نویسندگان
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