Hidden Zone Lumbar Disc Herniation の検討

抄録

Since 1979, 147 patients of lumbar disc herniation have been operated on in our clinic. In these cases, we experienced 3 cases (2.0%) of the hidden zone lumbar disc herniation. These cases had severe motion pain, sciatic scoliosis and straight leg raising test. But myelograms showed false negative findings. Therefore, herniation of this type has a tendency of the failed back. So, sufficient recognition must be done in therapy.