There is a connection with PN pain in that many of the reasons for the PN pain are the same as for the PLP.

http://www.wellcome.ac.uk/en/pain/mi...medicine2.html

*This* article is what had me doing research because I couldn't remember exactly what the cause of phantom limb pain is.

http://www.cnn.com/2008/HEALTH/03/19...apy/index.html

Oddly enough, a mirror placed next to the missing limb 'tricked' the brain into thinking the limb was still there. Yeah, weird. But hey, if it works....!!!