Surgical Treatment of Degenerative Diseases of Lumbar Spine: Use of B-TWIN Devices in Its Segmental Instability

A.V. Baskov, O.N. Dreval, A.I. Drakin, O.N. Uchurov, I.A. Borshchenko, V.A. Baskov

(Faculty of Neurosurgery of the Russian Academy of Postgraduate Education;
Central Clinical Hospital N 1 of the Russian Railways Open Joint-Stock Company;
Medical Center of Vertebrology and Orthopedics, Moscow)

The study goal has been estimating potentialities and results of surgical treatment in degenerative lesions of lumbar spine and use of B-TWIN devices in its instability.

Material and Methods. There were 47 cases with degenerative diseases of lumbar spine, subjected to interbody stabilization with transforming B-TWIN cages (DISCO-TECH, Germany). It was combined with decompressive operations (47 cases) and transpedicular fixation, which followed a reduction procedure, conditioned by spondylolisthesis of the Ist -IInd degree. Dynamic of a neurological status and intensity of pain syndrome were estimated on the basis of the visual-analog scale and Osvestry index.

Results. There was quick postoperative regression of pain syndrome, conditioned by segmental instability and neutral compression. The cases were followed up during 1.5 years. Pain syndrome relapse was watched in 2 cases. X-ray examinations revealed no migration of cages. The analysis of X-rays confirmed formation of a ventral bone block between vertebrae, adjacent to an operated disc.

Conclusions. Use of B-TWIN devices for interbody spondylodesis is a pathogenetically substantiated and technically adequate method of little-invasive surgical treatment of degenerative diseases of lumbar spine with segmental instability.