Comparative surface examinations on corund blasted titanium implants and explants in total hip arthroplasty
Comparative surface examinations on corund blasted titanium implants and explants in total hip arthroplasty
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DOI：
10.1007/s00402-005-0050-0
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发表时间：
2005-12-01
影响因子：
2.3
通讯作者：
Lill, C
中科院分区：
文献类型：
--
作者：
Schuh, A;Uter, W;Lill, C
简介：在髋关节植入物的表面处理的许多不同过程中，使用喷砂技术制造粗糙表面。最近的证据表明，在第三体磨损的意义上，残留颗粒和早期松动之间的关联。材料和方法：将5个未使用的原始包装CLS股骨柄和ARR-Titan支撑环的表面分别与5个已更换的CLS股骨柄和ARR-Titan支撑环进行比较。结果如下：ARR-Titan支撑环的表面粘附到Al 2 O3颗粒上，在植入物上为23.2 +/- 2.5%，在外植体上为12.3 +/- 3.0%（P < 0.0001）。对于CLS股骨柄，植入物上Al 2 O3颗粒粘附的表面为16.4 +/-2.2%，而外植体上Al 2 O3颗粒粘附的表面为12.4 +/- 3.3%（P = 0.0275）。讨论内容：本研究的结果表明，在即用型器械的粗糙喷砂钛表面上，可发现高百分比的钛合金颗粒。相比之下，在植入前以相同方式处理的外植体上，这种污染显著较少。
Introduction: Blasting techniques using corundum to create rough surfaces are used in many different processes for the surface treatment of hip implants. Recent evidence points an association between residual particles and early loosenings in the sense of third-body wear. Materials and method: The surfaces of five unused, original-packaged CLS stems and ARR-Titan supporting rings, respectively, were compared with five explanted CLS stems and ARR-Titan supporting rings. Results: The surface of the ARR-Titan supporting rings was adhered to Al2O3 particles at 23.2 +/- 2.5% on the implants and 12.3 +/- 3.0% on the explants (P < 0.0001). For the CLS stem, the surface to which Al2O3 particles adhered was 16.4 +/- 2.2 % on the implants, whereas the surface to which Al2O3 particles adhered was 12.4 +/- 3.3% on the explants (P = 0.0275). Discussion: The results of this study show that corundum particles can be found to cover a high percentage on rough-blasted titanium surfaces of ready-to-use devices. In contrast, this contamination is significantly less on the explants treated in an identical fashion prior to implantation.