No, but I do believe like anything, it always depend of the attitude. Ankylosing can it's true interfer with life and can request more help and understanding from a partner, but not necessarily.
Yet, it is important to explain clearly our needs and to suggest what can help us.
It is also important to remember that the partner become also affected by the illness and may also need to be heard and supported sometimes.
It's a journey that it's done together.