Department of Orthopaedic Medical Engineering, Osaka University Graduate School of Medicine, 2-2 Yamadaoka, Suita, Osaka 565-0871, Japan.
Department of Orthopaedic Surgery, Osaka University Graduate School of Medicine, 2-2 Yamadaoka, Suita, Osaka 565-0871, Japan.
J Arthroplasty. 2014 Dec;29(12):2239-44. doi: 10.1016/j.arth.2014.04.030. Epub 2014 Apr 26.
There is increasing awareness of prevalence of adverse local tissue reaction (ALTR) surrounding metal-on-metal (MoM) and highly cross-linked polyethylene (HXLPE) bearings, and sensitive and simple screening modalities for ALTR are required. We examined reliability of ultrasound screening for ALTR in 131 hips of 105 patients who received both ultrasound and MRI examinations after hip arthroplasty with MoM or HXLPE bearings. Using the MRI results as reference, sensitivity, specificity and accuracy of ultrasound were 74%, 92% and 84% around MoM bearings, and 90%, 83%, and 85% around HXLPE bearings. Ultrasound detected ALTR in 11 hips that were not shown with MRI. Ultrasound examination is assumed to be a reliable screening tool for detecting clinically important ALTR lesions developing in the anterior region around MoM or HXLPE bearings.
人们越来越意识到金属对金属（MoM）和超高交联聚乙烯（HXLPE）关节轴承周围不良局部组织反应（ALTR）的发生率，因此需要敏感且简单的 ALTR 筛查方法。我们检查了在 105 名接受 MoM 或 HXLPE 关节轴承髋关节置换术后接受超声和 MRI 检查的 131 髋中，超声筛查 ALTR 的可靠性。使用 MRI 结果作为参考，超声在 MoM 轴承周围的灵敏度、特异性和准确性分别为 74%、92%和 84%，在 HXLPE 轴承周围的灵敏度、特异性和准确性分别为 90%、83%和 85%。超声检测到 11 髋 MRI 未显示的 ALTR。超声检查被认为是一种可靠的筛查工具，可用于检测 MoM 或 HXLPE 关节轴承前区出现的临床重要的 ALTR 病变。
