Travmatologiâ i Ortopediâ Rossii (Mar 2011)
RATIO OF SURGICAL CORRECTION SPINAL CANAL WITH INJURIES AND DEGENERATIVE SPINE DISEASES
Abstract
Ratio of surgical correction spinal canal during injury and illness was suggested. At SCT and MRI in the sagittal projection of the measured diameter of the cross-section of the spinal canal at the site of maximum narrowing (d2), in the overlying (d1) and underlying (d3) levels, we calculated the coefficient of stenosis (Kst): Kst = 1 – 2d22: (d12 + d32). After surgery, surgical correction factor was determined (KK): KK = 1 – Kst2: Kst1, where Kst1 – coefficient of stenosis before surgery, Kst2 – after the operation. Surgical correction was considered unsatisfactory by KK < 0,4.
Keywords