Effectiveness of Transcranial Direct Current Stimulation for TKR
Effectiveness of Transcranial Direct Current Stimulation for TKR
Transcranial direct current stimulation (tDCS) is a technique of noninvasive cortical
 stimulation allowing significant modification of brain function used. Clinical application of
 this technique could be helpful for pain, Parkinson's disease, dystonia, cerebral palsy and
 dementia etc. And tDCS is safe with only mild, transient adverse effects. But there is few
 studies focused to postoperative states.

 The aim of this project is to reveal the effect of tDCS for postoperative pain after total
 knee replacement surgery,
Inclusion Criteria:

 -  Subjects who have scheduled elective spine surgery.

 Exclusion Criteria:

 -  Who has Cognitive dysfunction before surgery.

 -  Who already has delirium before surgery.

 -  Who has pain disorder ( like CRPS)

 -  Who cannot reveal the one's pain.