骨关节炎(一)X线读片

2022-08-22 放射沙龙 放射沙龙

膝关节炎X线

骨关节炎是中老年人群中最为常见的骨关节疾病之一,是一种由于机械性、代谢性、炎症和免疫等因素作用造成关节软骨变性、破坏和骨质增生为特征的一种慢性关节退行性病变。骨关节炎是一个非常大的范畴,涉及的发病机制、病理特征及临床特点等等阿土伯在以后的科普中会逐步进行介绍。这里仅以一个典型的骨关节炎X线片为例向大家介绍下骨关节炎在影像学检查上的典型表现。

看到下面这张X线片,相信即使对医学知识毫无概念的朋友们也能够发现哪一侧的膝关节出了问题。

首先看到的是骨关节炎侧的膝关节关节间隙狭窄乃至消失。关节间隙的存在其实就是软骨的存在,软骨组织在X线中并不显影,当关节软骨存在时可以看到膝关节胫骨与股骨之间存在间隙。而当晚期骨关节炎时,关节软骨彻底磨损消失,在X线片上关节间隙也就随之消失。

但对骨关节炎患者的X线读片不仅仅是观察有无关节间隙的狭窄,下面的示意图中,标示了在X线片上常见的骨关节炎的各种表现。

严重的骨关节炎在X线片上会有这些明确的表现,而骨关节炎程度较轻的患者,在X线片上通常难以发现问题,这时候就需要进一步进行磁共振检查。在后续的章节中阿土伯会对骨关节炎在磁共振上的表现做一步进行解读!

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    2022-08-22 屋顶瞄爱赏月

    签到学习

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    2022-10-17 lisa438
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    2021-11-10 lmm397
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    2021-11-10 piaojinhua

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