Hi Louella. Sorry to hear about your troubles, but glad you're still around.
I'm sure there's a way to continue knitting, a lot of people knit on straight needles with the end tucked into an armpit or propped against a leg, or in the groin area. Google for 'pit knitting' or 'lever style' knitting. There are knitting looms you can use to knit hats in the round or scarves too.
sue- knitting heretic