What is the significance of preganglionic in shoulder dystocia cases?

Complex question: This has to do with where the nerve tear occurred. The ganglion is just off the spinal cord and shoulder dysytocia brachial plexus injuries can occur before or after. Preganglionic injuries tend to have a poorer outcome and can cause a related horners syndrome as well. Because of where the injury is, there tends to be less spontaneous healing or surgical options. I hope this answer helps.