Context:
Some details of Taylor's medical history
According to media archives, she had been a regular smoker well into her fifties. An x-ray scan revealed spots on her lungs in 1975, but lung cancer was eventually ruled out.
She
broke her back five times
She had two hip replacements
She survived skin cancer
She underwent a brain tumor operation (benign)
Twice she had life-threatening pneumonia
She received treatment for alcoholism in the 1980s
She received drug addiction treatment in 1983 and 1988 at the Betty Ford Clinic
She was diagnosed with congestive heart failure in 2004
When seen in a wheelchair she explained that it was due to her osteoporosis and that she was born with scoliosis (sideways curving of the spine)
More:
http://www.medicalnewstoday.com/articles/220305.php