Table 1: Preoperative and after 2 years follow-up Burke-Fahn-Marsden dystonia rating scale score.

Body regions

Preoperative

 Follow-up 24 months

Eyes

8

8

Mouth

8

3

Speech and swallowing

16

16

Neck

8

2

Right arm

12

6

Left arm

12

6

Right leg

12

6

Left leg

12

9

Trunk

12

12