Table 2

Subscores of the modified Toronto western spasmodic torticollis rating scale in patients with idiopathic cervical dystonia before and after bilateral pallidal deep brain stimulation

Max scorePreoperative3 months6 months12 monthsLast follow up†
*p<0.05; **p<0.01; ***p<0.005 (mean postoperative improvement v preoperatively).
†Mean of last follow up=20 months.
Total severity score3220.512.7***9.7***9.2***7.5***
Total functional disability score6040.518.5**17.2***13.7***12.7***
Total pain score863.7 (NS)3.5 (NS)3.3*3*