This is Dr. DavidI am a cancer doctor. I wanted to give you my opinion. yes, stents in the ureter and uretral strictures and fibrosis and stenosis of the utereter can cause referred pain to the hip area. the nerves which lead from the ureter can cause referred pain to the flank which is the area between the ribs and and hip towards the side of the abdomen and the backbut some lower ureter scar tissue when it comes close to the bladder at the ureter-vesciuclar (bladder) junction can cause referred pain to the hip. ureter stents can be quite painful especially if you have narrowing of the ureter from pelvic radiation therapy one thing which can help painful uretera stents is a medication called pyridium which can turn your urine orange but can help numb up your urinary system and bladder and ureter and can help decrease some of the painif pyridium works, then the pain is most likely coming from the ureter.
ureter stents are good as they keep the flow of urine coming from the kidney, but they have risks for infection and need to be changed out every 2-3 months to decrease risks for infection.
ask your doctor about trying the medication pyridium and see if this helps decrease the pain for you.
let me know if you have questions.