A. P. Zhivotenko
Irkutsk Scientific Centre of Surgery and Traumatology 
Russian Federation

 Research Officer at the Research Clinical Department of Neurosurgery

Bortsov Revolyutsii str. 1, 664003, Irkutsk, Russian Federation 

Z. V. Koshkareva
Irkutsk Scientific Centre of Surgery and Traumatology 
Russian Federation

 Cand. Sc. (Med.), Leading Research Officer at the Research Clinical Department of Neurosurgery

Bortsov Revolyutsii str. 1, 664003, Irkutsk, Russian Federation 

A. V. Gorbunov
Irkutsk Scientific Centre of Surgery and Traumatology 
Russian Federation

 Neurosurgeon of Neurosurgical Unit, Research Officer at the Research Clinical Department of Neurosurgery

Bortsov Revolyutsii str. 1, 664003, Irkutsk, Russian Federation 

V. A. Sorokovikov
Irkutsk Scientific Centre of Surgery and Traumatology; Irkutsk State Medical Academy of Postgraduate Education – Branch Campus of the Russian Medical Academy of Continuing Professional Education
Russian Federation

 Dr. Sc. (Med.), Professor, Director; Head of the Department of Traumatology, Orthopedy and Neurosurgery 

Bortsov Revolyutsii str. 1, 664003, Irkutsk, Russian Federation 

 Yubileyniy, 100, 664049, Irkutsk, Russian Federation