MRI-semiotics of diastematomyelia

MRI-semiotics of diastematomyelia

Diachkov К.А., Diachkova G.V., Yevreinova Ya.V., Gubin A.V., Rabykh S.O., Zeinalov Yu.L., Savin D.M.

Diastematomyelia (DSM) refers to rather rare pathology with 0,06% incidence but it is accompanied by considerable changes of the spine and spinal cord with severe clinical manifestations.

Purpose. To study MRI-semiotics of different types of diastematomyelia to define the changes required in planning the operative invasion.

Material and Methods. 38 patients with diastematomyelia including 10 males and 28 females were examined before treatment using MRI. MRI was performed using Siemens Magneton T1-weighted (T1W1), T2-weighted (T2W1) and fat suppressed T2-weighted (STIR) MR images were used in the sagittal plane and T2W1 images were used in the axial and front planes.

Results. Spinal cord splitting was revealed in 15 cases at the level of thoracolumbar transition and in 17 cases it was observed in the lumbar spine. Spinal deformities were found in 31 patients. In 37 patients DSM was combined with different variants of the spine mal-developments and  disorder of segmentation or formation. Bony septum was observed in 17 patients, the fibrous one was in 16 cases and in 5 patients it was absent. 27 cases of various accompanying pathology of the spinal cord were observed in the patients with DSM of Type I and 31 cases were revealed in DSM of Type II.

Analysis of obtained material indicated that MRI made possible to get the information regarding spinal structure and spinal cord condition and peculiarities of formation, level and character of septum in the patients with diastematomyelia concurring with opinion of AP Trenga et al., 2016, AN Khan et al., 2016, on efficacy and usefulness of MRI in diagnostics of dysgraphia.

Conclusion. MRI allowed us to reveal all symptoms complex of the signs typical of DSM (the character of splitting, structure of the septum, topographic peculiarities) as well as the accompanying pathological changes of the spine and spinal cord that can be crucial in making surgical solution.

Russian Ilizarov Scientific Center “Restorative Traumatology and


Kurgan, Russia.


Keywords: diastematomyelia, Magnetic Resonance Imaging, MRI-semiotics.

Corresponding author:  Diachkova G.V.; e-mail: Этот e-mail адрес защищен от спам-ботов, для его просмотра у Вас должен быть включен Javascript


For citation: Diachkov К.А., Diachkova G.V., Yevreinova Ya.V., Gubin A.V., Rabykh S.O., Zeinalov Yu.L., Savin D.M.  MRI-semiotics of diastematomyelia. REJR 2019; 9(2):63-73. DOI:10.21569/2222-7415-2019-9-2-63-73.

Received:        26.05.19                 Accepted:       05.07.19