[Sciatica caused by massive herniated disk].

On the basis of the surgical findings in 10 cases a description is given of a massive form of disc hernia corresponding to posterolateral displacement of the entire disc with the fibrous ring and cartilaginous surfaces. Such hernias were found in 7 cases of severe lumbar sciatica, including 3 with the cauda equina hemisyndrome and in 3 cases of simple lumbar sciatica operated on for their severe and refractory nature. It is useful to know this variety of hernia so that its uncommon aspect is not surprising on surgery. The term of massive hernia is proposed exclusively for these forms.