my 84 year old grandma had fell and broke her right hip, she had surgery the following morning. it was 6 days after and she is complaining about her foot on the left side. it has become swollen and brused, has sensations on pins and needles to acute pain that travels up her leg. she has been in the hospital lying on the right side or her back, her legs have been consistantly propped up in some manner. what is it that could cause this, and is there a possible way to fix this or releave the pain that she is in?