Setback...please pray for me

Hi everyone, I had surgery on 9/23 and all has gone very well. Then last Tues. night, the day before my 2 week checkup and staple removal, my left knee locked up and has been that way since. I can't walk or put any weight on it. I didn't make it to my appt. and on Thurs. saw the ortho doc. (Had to scoot down the steps on my rear and hubby drove the car up to the bottom step. Then got a wheelchair when we got to the dr. office.....so much fun.) He gave me a shot of cortisone and said to let him know by next Tues. if it was better. There's a chance that I might have to have an emergency knee replacement, though he doesn't like me having another major surgery so soon. He would rather wait 3-6 months. I was able to extend the knee further today and pray that it will unlock in the next day or two. I really don't want to have another surgery so soon. I'm asking for your prayers because I know it will make a difference. Thanks so much. Pam