A ganglion impar injection is used to diagnose and manage visceral or sympathetic-maintained pain in the perineal and coccygeal areas.
Here are 3 pro tips to perform a ganglion impar injection
- Place the transducer transversely in the midline to obtain a transverse view of the sacral hiatus.
- Rotate the transducer 90° to get a longitudinal view of the sacral hiatus and coccyx. The sacrococcygeal joint is the first cleft caudal to the sacral hiatus.
- Insert a 22- to 25-gauge needle out-of-plane into the sacrococcygeal joint.
Sonoanatomy
Reverse Ultrasound Anatomy
Comparison of sonoanatomy and reverse ultrasound anatomy for a ganglion impar injection.
Download the US Pain App HERE to read other tips on managing acute and chronic pain and to access the complete guide to ultrasound-guided chronic pain blocks.
