Those who have had uterine cancer and both external beam and high dose brachytherapy. In the above related article one patient said she had back pain after treatment. I too have lumbar spine pain, spasms around Iliad crest, pain Iliad not, buttocks, hips, groin, pelvis, and legs with lymphedema from chest down to toes. Has your back pain been diagnosed what o t is and is it due to radiotherapy. Thank you. My last treatment was April 2011 and back pain started October 2011 with left hip pain December 2011 gradua)ly off and on to constant about March 2012.