Calorie Calculator - Daily Caolorie Needs www.freedieting.com/tools/calorie_calculat
I put you in at 45 years old (you didn't mention how old you were) & I put in Basal Metabolic Rate which means no exercise just daily life.
To maintain your weight you need 2,096 calories per day.
At the rate your consuming calories (1700/day) you would reach 190#s during the fall of 2013.
My point is that it takes time. I'm sorry your hips are bad, perhaps there are other ways to exercise.
For me, I'd be very carefule to NOT starve myself because when I skip a meal especially at night my weight either doesn't move or goes up a bit. Our bodies are like cars, we constantly need fuel to keep it running (just not too much fuel where it overflows and spills out of the tank).
All the info I got from the link above and a little research on that site.