The characteristic features of the postoperative dynamics of sensomotor deficiency parameters in patients with LV isthmic antelisthesis

Aim of the work consists in evaluating the influence of spondylolitic defect of vertebral arch pedicle on pre- and postoperative integral EMG-characteristics of sensomotor deficiency (ISD) in lower limb system in patients with neurologically complicated LV spondylolisthesis, and also in comparing the manifestation degree of neurophysiological signs of functional insufficiency for the pairs of spinal nerve roots, localized cranially and caudally relative to the pair compressed. 29 patients at the age of 13-48 years (14 males and 15 females) with neurologically complicated isthmic (15 patients) and non-isthmic (14 patients) LV spondylolisthesis of I-IV degree, undergone the operative treatment course by the technology developed at RISC "RTO" were subjected to complex neurophysiological testing. The differences between pre- and postoperative ISD values in patients with isthmic and non-isthmic LV spondylolisthesis are connected with dural sac spontaneous decompression, developing in case of LV pedicular bilateral spondylolitic defect. There are no preoperative differences between the mean ISD values, determined for the root pairs, localized cranially and caudally relative to the pair compressed. The reaction of LV roots to operative intervention was noted to have of the highest manifestation degree