Table 4

Active electrode contacts relative to the margin of the subthalamic nucleus

Procedures<3 Tracks≥3 TracksDorsalMarginVentral
Microrecordings included five tracks per procedure which were explored in parallel (see Methods). With one unilateral procedure, 49 operations were done in 25 patients. To define the dorsal border of the subthalamic nucleus, at least three informative microrecording tracks were required. Classification into “dorsal,” “margin,” and “ventral” was done as described in Results.
49123714 (37.8%)12 (32.4%)11 (29.7%)