Electrode migration is the most common complication of spinal
cord stimulation (SCS). The problem of longitudinal migration has
already been solved, but lateral migration remains the most
common current complication. The present article describes new
electrodes fixation opportunities for the reduction of lateral
migration in SCS. The pig was chosen as an animal model to
illustrate a new protocol of electrode fixation for the control of
lateral and longitudinal migration. The displacement of the
electrode was measured using two different optical methods: the
digital image stereo-correlation and the digital image processing
methods. Fixation with two anchors has always considerably
reduced electrode displacement and when fixation is done with two
anchors and a loop then lateral migration is reduced by 62.5 %
and longitudinal migration is reduced by 94.1 %. It was shown that
the results are significantly different at the α=0.001 significance
level. Based on a statistical evaluation it is possible to state that the
differences between experimental results obtained for three
different protocols of lead fixation are statistically significant and
we can recommend the new fixation method for common practice.