>>I just found out that I need a hip replacement
Not such a deal these days- and unless you have an unusual situation and if they used a cemented version, they'll have you out of your bed the next day and out of there in no time. But do buy a fat pillow- you may not know why yet, but you soon will. ;-)
In your shoes I'd google longevity of cemented vs uncemented hips, most particularly the "Exeter" variety that still has extraordinary results 3 decades later... not so you can p*ss of your surgeon by being a know-all but so you can satisfy yourself that your surgeon is doing what's going to be best for you, which is a hip that won't need revision in a decade when in 2014 statistically you can expect to live at least another 30 years.
"... They ne'er cared for us
yet: suffer us to famish, and their store-houses
crammed with grain; make edicts for usury, to
support usurers; repeal daily any wholesome act
established against the rich, and provide more
piercing statutes daily, to chain up and restrain
the poor. If the wars eat us not up, they will; and
there's all the love they bear us."
-- Shakespeare: Coriolanus, Act 1, scene 1
