The patient is an 84-year-old female who had a history of a fall approximately 2 weeks ago. She was seen in the ED at St. Joseph 's in Wayne at which time she had right hip and pelvic x-rays and also a CT of the of the hip. There was some question as to whether she had developed a fracture or dislocation of a previous hip prosthesis. The patient was in excruciating pain and was having difficulty ambulating. Her medical history is significant for diabetes mellitus, hypertension, Alzheimer 's disease, right hip fracture surgery back in January 2014. The patient is described as being forgetful and confused and she has tenderness over the right hip. The hip x-ray done at St. Joe 's reveals a possible dislocation. CT of the right hip shows