Craig Joseph G
Department of Radiology, Henry Ford Hospital, Detroit, MI 48202, USA.
Semin Musculoskelet Radiol. 2013 Feb;17(1):49-55. doi: 10.1055/s-0033-1333914. Epub 2013 Mar 13.
Imaging of the postoperative hip with ultrasound can be difficult and challenging. The primary role of ultrasound is to help determine whether or not there is infection. It is difficult at times to differentiate between complex fluid and synovium. Whether fluid is infected or not cannot be determined by ultrasound criteria and aspiration, and laboratory analysis is required. Particle disease and infection cannot be reliably differentiated by ultrasound criteria. In the setting of possible infection, any fluid collection/s around the hip should be treated with suspicion and, if possible, aspirated. The importance of sending part of the aspirated fluid for cell count is stressed; aspirated synovial fluid with a cell count >3000 white blood cells per milliliter of aspirated synovial fluid when combined with an elevated erythrocyte sedimentation rate and C-reactive protein level is highly predictive of infection.
术后髋关节的超声成像可能困难且具有挑战性。超声的主要作用是帮助确定是否存在感染。有时很难区分复杂的液体和滑膜。超声标准和穿刺无法确定液体是否被感染，需要进行实验室分析。超声标准无法可靠地区分颗粒疾病和感染。在可能存在感染的情况下，髋关节周围的任何液体积聚都应引起怀疑，如有可能，应进行穿刺。强调了将部分穿刺液送去进行细胞计数的重要性；当穿刺滑膜液的细胞计数>每毫升穿刺滑膜液3000个白细胞，同时红细胞沉降率和C反应蛋白水平升高时，高度提示感染。
