That is a terrible story...a THR lasting only two years and then a revision one year later.
My advice is don,t do anything unless you pick your surgeon and Orthopaedic Unit very carefully as the outcome of yet another revision is variable as to the relief of pain and gait.
Which part of the country do you live?
Getting back to your question......this will depend upon how long you stay in hospital, but with surgeon, anaesthetist and hotel facilities one is looking at £5,000.
I must emphasise........pick your surgeon very carefully, as this will be the last "bite of the cherry."