I don't think there was anything un-PC about it.
Spastic just meant someone suffering from a condition where spasticity was a symptom. I feel it wasn't really until the 80's it became a playground taunt, and started being applied to other conditions featuring mental and physical handicaps.
( The Awful Puppy Bakery is still bored, Thu 5 Apr 2012, 16:25, 1 reply)

Any word to describe a debilitation
has a 4 year lifespan, from a clinical term to polite usage to a cruel taunt.
(the other guy not the one that gave you coochie warts, Thu 5 Apr 2012, 17:10, closed)

I like this,
because it's true.
( The Awful Puppy Bakery is still bored, Thu 5 Apr 2012, 17:53, closed)