Patients with a double crush phenomenon may experience residual nerve pain in the upper limb even after carpal tunnel release surgery.

“many patients will then see a neck surgeon who will say well you don't really need surgery yes I think you do have double Crush but you can go ahead and treat I can go ahead and treat let's say they have moderate carpal tunnel I can do a carpal tunnel release and they'll still get better they won't may not get all the way better though most of their car all their carpal tunnel would go away but they'll still have some of the upper you know nerve pain so the double Crush phenomena is real and true”