When I read about Madonnas back problems and knee problems I always think I could help her with the wonderful DORN-Method from Germany which I uses and taught to thousands of people in the past over 25 years.
The DORN-method works very much different than normal therapies will use. So it has a different level of activity and results.
I hope I could have at the possibility of a treatment for Madonna to look at her back and pelves where the problems are.
You can read on my site