کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
4081247 1267584 2015 4 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
Adverse tissue reaction to corrosion at the neck-stem junction after modular primary total hip arthroplasty
ترجمه فارسی عنوان
واکنش بافت جانبی به خوردگی در اتصال گردن-ساقه پس از مدولار آرتروپلاستی کلی کلیه مجرا
کلمات کلیدی
آرتروپلاستی کامل لگن، خوردگی، ساقه مدولار، شبه تومور، واکنش نامطلوب به ضایعات فلزی، واسکولیت لنفوسیته ای آسپتیک و ضایعات مرتبط با آن
موضوعات مرتبط
علوم پزشکی و سلامت پزشکی و دندانپزشکی ارتوپدی، پزشکی ورزشی و توانبخشی
چکیده انگلیسی

Complications related to the neck-stem junction of modular stems used for total hip arthroplasty (THA) are generating increasing concern. A 74-year-old male had increasing pain and a cutaneous reaction around the scar 1 year after THA with a modular neck-stem. Imaging revealed osteolysis of the calcar and a pseudo-tumour adjacent to the neck-stem junction. Serum cobalt levels were elevated. Revision surgery to exchange the stem and liner and to resect the pseudo-tumour was performed. Analysis of the stem by scanning electron microscopy and by energy dispersive X-ray and white light interferometry showed fretting corrosion at the neck-stem junction contrasting with minimal changes at the head-neck junction. Thus, despite dry assembly of the neck and stem on the back table at primary THA, full neck-stem contact was not achieved, and the resulting micromotion at the interface led to fretting corrosion. This case highlights the mechanism of fretting corrosion at the neck-stem interface responsible for adverse local tissue reactions. Clinical and radiological follow-up is mandatory in patients with dual-modular stems.

ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Orthopaedics & Traumatology: Surgery & Research - Volume 101, Issue 1, February 2015, Pages 123–126
نویسندگان
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