Migration of the Trabecular Metal Monoblock Acetabular Cup System

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• 作者：Athanasios T. Kostakos ; Georgios A. Macheras ; Constantinos E. Frangakis ; Kosmas S. Stafilas ; Dimitrios Baltas ; Theodoros A. Xenakis
• 关键词：trabecular metal ; monoblock ; EBRA ; migration
• 刊名：The Journal of Arthroplasty
• 出版年：2010
• 出版时间：January 2010
• 年：2010
• 卷：25
• 期：1
• 页码：35-40
• 全文大小：178 K

文摘

Fifty-one primary total hip arthroplasties were performed using Trabecular Metal Monoblock Acetabular Cup System (Zimmer Inc, Warsaw, IN). In a 2-year prospective study, its behavior was closely monitored by clinical, radiologic, and component migration assessment by Ein-Bild-Röntgen-Analyse method. There were no complications. The mean Harris hip score was improved from 41 to 95. A polar gap at the postoperative radiograph was noted at 25 % of the arthroplasties, most of which subsequently filled with bone within 6 months. The mean total absolute migration was 0.67 mm. The implant showed excellent early clinical and radiographic behavior. The 2-year migration rate study, as index of long-term survival and success, showed very good early implant stability and, in all cases except one, superior to the available studies for similar design acetabular cups.