A total 48 cases of myelography using Metrizamide were performed between August 1981 and July 1983 at the department of Orthopedic Surgery, Kwangju Christian Hospital. Of these cases, H.N.P was 26, tuberculous spondylitis 16, spondylolisthesis 4, and multiple sclero-sis 2 cases. The advantages of this study were as folows: 1. Complications were minimal in most of the cases except a slight headache. 2. Large amount of infusion was possible. 3. Rootlet was clearly seen. 4. Removal of dye was not necessary. 5. It gave a good contrast for the radiologic study.