MRI clues may predict who gets pain relief from neck injection

This study looked back at the medical records of 90 adults with neck and arm pain caused by a pinched nerve. Researchers wanted to see if MRI scans could predict who would get good pain relief from a procedure called a stellate ganglion block, where numbing medicine is injected near nerves in the neck. They found that certain changes in the neck muscles and the type of nerve compression might help predict whether the injection will work.