in A new Hope, Luke's uncle Owen is a Cripple.
I was thinking you were referencing how he was crippled: Him and a bunch of other Moister Farmers saddled up their bikes and rode across the plains to go fuck up some Sand People. Said sand people promptly said "fuck that noise" but you know, in Sand people talk, and basically wired up a bunch razor thin wires across a section of the plains.
Like a third of them out right died. The rest were injured in some form or another. Owen lost a leg.
It's how he went from standing and walking right in Ep3 and floating on a floater thing in Ep4, Owen Lars is actually Anikin's step brother, since his dad remarried Shami Skywalker.