Scientific studies have shown that Restless Legs Syndrome occurs significantly higher in post-op patients. Inflammation is a likely cause. There's also scientific evidence of a higher presence of inflammation in pregnant women.
You can view the studies here: http://www.rlcure.com/othercond.html
A new study was published in the January 14, 2012 issue of "sleep Medicine Review Journal" that supports the theory of inflammation being the cause. It also refers to the studies done on post-op patients where the rate of RLS is significantly higher than the norm.
http://www.rlcure.com/rls_study.pdf
You can view the results of other related scientific studies and learn about some helpful solutions here:
http://www.rlcure.com
A blog for RLS sufferers with helpful tips can be found here:
http://therestlessle...g.wordpress.com