Chevrot A, Pillon B, Revel M, Moutounet J, Pallardy G
J Radiol Electrol Med Nucl. 1978 Apr;59(4):267-70.
Profile films of the lumbar region show the vacuum-disc phenomenon fairly frequently especially at the L5-S1 level and when there is disc degeneration. Two varieties can be distinguished : one with a well-defined enlarged medial image, and a more limited type which is often anterior, at the fibrous ring level and in contact with the vertebral plates. The latter is seen less frequently, but needs to be considered, as it precedes the changes seen in the nucleus pulposus in the intersomatic alteration. It has been shown that this image is of gaseous origin. It is caused by the liberation of gas into a newly-formed intersomatic cavity situated either in the nucleus pulposus or fibrous ring levels. The vacuum-disc phenomenon is of great diagnostic value as it is usually found in relation to degenerated discs and permits orientation of diagnosis towards classical arthrosis or Pott's pseudo-arthrosis when atypical radiological images are seen.
腰椎的侧位片相当频繁地显示椎间盘真空现象，尤其是在L5 - S1水平以及存在椎间盘退变时。可区分出两种类型：一种是内侧影像清晰扩大，另一种较为局限，常位于纤维环水平前方并与椎体板接触。后一种类型较少见，但需要考虑，因为它先于椎间改变中髓核的变化出现。已表明此影像源于气体。它是由气体释放到新形成的椎间腔引起的，该椎间腔位于髓核或纤维环水平。椎间盘真空现象具有很大的诊断价值，因为它通常与退变的椎间盘相关，当出现非典型放射影像时，有助于将诊断导向典型的关节炎或波特氏假关节。
