[Retracted] Intrathecal Pump Implantation in the Cisterna Magna for Treating Intractable Cancer Pain

Figure 1

Intrathecal pump was implanted in the cisterna magna under DSA, located in midpoint of cisterna magna. After successful puncture, the catheter tip was inserted 3-4cm towards the head, pull out the puncture needle, and moved to the interspinous ligament.

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