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شکست های قابل تعویض گردن در ساقه های ران دو مدولار در آرتروپلاستی مفصل ران کامل نمی تواند از طریق تجزیه و تحلیل عناصر کمیاب سرم پیش بینی شود

Interchangeable neck failures of bi-modular femoral stems in primary total hip arthroplasty cannot be predicted from serum trace element analysis
سال انتشار: a2020
زبان فایل: انگلیسی
فرمت فایل: pdf
قیمت: 100,000ريال

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DOI: 10.1007/s00264-020-04812-6

Abstract

Introduction

Revision of a well-fixed stem due to unexpected modular neck fracture is a catastrophe for the patient and a challenge for the surgeon. This study aimed to test the possibility of predicting interchangeable neck fracture from serum levels of the stem/neck alloy-consisting metals.

Materials and methods

Nineteen patients at high risk for interchangeable neck fracture were randomly selected out of a cohort of 680 bimodular stems made from Ti6Al4V alloy. Serum levels of titanium, aluminium and vanadium were determined. Nine age- and gender-matched patients were used as controls.

Results

Mean serum levels of Ti were 6.04 ± 2.52 μg/L, of Al 3.89 ± 1.68 μg/L and of V 0.07 ± 0.04 μg/L in the high-risk group, and 8.22 ± 4.74 μg/L, 4.99 ± 3.98 μg/L and 0.27 ± 0.44 μg/L in the low-risk group, respectively. No statistically significant differences were found between the groups.

Discussion

Interchangeable neck fracture of bimodular femoral stems cannot be predicted from serum trace element analysis.