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首页> 外文期刊>Acta orthopaedica Scandinavica. >Periprosthetic bone loss after cemented total hip periprosthetic bone loss after cemented total hip arthroplasty: a prospective 5-year dual energy radiographic absorptiometry study of 15 patients.
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Periprosthetic bone loss after cemented total hip periprosthetic bone loss after cemented total hip arthroplasty: a prospective 5-year dual energy radiographic absorptiometry study of 15 patients.

机译：固定全髋关节置换后的假体周围骨丢失固定全髋关节置换术后的假体周围骨损失：一项针对15位患者的前瞻性5年双能X线骨密度仪。

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摘要

In this prospective 5-year study, we determined the periprosthetic bone loss after cemented total hip arthroplasty (THA) in 15 patients using dual energy X-ray absorptiometry (DXA). A reduction in the periprosthetic bone mineral density (BMD) of 5-18% occurred in all Gruen regions, or regions of interest (ROI), during the first 3 months after THA. The bone loss continued up to 6 months in almost all ROIs. From 1 to 5 years, we found only minor changes in BMD in periprosthetic bone. After the follow-up, the mean greatest bone loss (26%) was seen in the femoral calcar area. The reduction in mean BMD was 5% in men, and 16% in women. The lower the preoperative BMD, the higher was the postoperative bone loss. We found that after the phase of acute bone loss, further loss was minimal, reflecting merely the normal ageing of bone after uncomplicated THA.
机译：在这项为期5年的前瞻性研究中，我们使用双能X线吸收法（DXA）确定了15例患者进行了全髋关节置换术（THA）固定后的假体周围骨丢失。在THA后的前三个月中，所有Gruen区域或感兴趣区域（ROI）的假体周围骨矿物质密度（BMD）降低了5-18％。在几乎所有的投资回报率中，骨丢失持续了长达6个月。从1到5年间，我们发现假体周围骨中BMD的变化很小。随访后，在股骨cal骨区域平均骨丢失最多（26％）。男性平均BMD降低5％，女性降低16％。术前BMD越低，术后骨丢失就越高。我们发现，在急性骨质流失阶段之后，进一步的骨质流失微乎其微，仅反映了单纯性THA后骨骼的正常衰老。

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