Figure 1
Preoperative sequential photographs of case 1 (A) and case 2 (B), demonstrating severe cervical tics with forceful neck extension.
Video 1
Pre- and postoperative videos of case 1 and case 2. They demonstrate motor tics characterized by forceful neck extension and their improvement following deep brain stimulation in both cases. The video has been edited to ensure patient privacy.
Figure 2
Pre- and postoperative evaluation of case 2. Sagittal T2-weighted magnetic resonance imaging revealed a high-intensity area extending from the C3 to C6 levels (A). Postoperative X-ray confirmed proper lead placement (B). When the neck was extended, the IPG caught on the clavicle, placing stress on the cable (arrowhead), which was presumed to have caused cable breakage (C).