VERTEBROPLASTY TECHNIQUE Russian patent published in 2014 - IPC A61B17/00 

FIELD: medicine.

SUBSTANCE: invention is referred to medicine, namely neurosurgery and traumatology. Pre-operative helical computed tomography is performed. Maximum d_max-a and minimum d_min-a diameters above an injured vertebra and maximum d_max-b and minimum d_min-b diameters below the injured vertebra are measured in an axial plane. An average diameter d_av, equal to the total value divided by 4 is calculated. Maximum h_max-a and minimum h_min-a height of the vertebra above the injured vertebra and maximum h_max-b and minimum h_min-b height of the vertebra below the injured vertebra are measured in a sagittal plane. An average height h_av, equal to the total value divided by 4 is calculated B. Heights of anterior h₁ and posterior h₂ segments of the injured vertebra are measured in a sagittal plane. The required amount V of cement to be introduced is calculated by formula: $$V=\pi \times \frac{d_{av}^2}{4}\left(h_{av}-h_1-\frac{h_2-h_1}{2}\right).$$ Needles are inserted transpedicularly into the injured vertebral body under guidance of the electronic image converter. Cement is introduced in the amount equal to the injured vertebral body volume calculated before the surgery.

EFFECT: invention provides more effective manipulation ensured by introducing the required and adequate amount of bone cement into the vertebral body.

1 ex, 3 dwg