I don't know if they are being used everywhere but I had a 'pain blocker' bubble/drip thingamy for the 1st 48hrs after.
It is a little almost tennis ball sized baloon with local pain blocker inside. The juice is delivered by a thin tube direct to the area (into the joint) and worked so well for me I only had a couple of panadiene forte for the 1st couple of days.
When it is finished and collapsed you just gently remove it yourself. Top stuff.

Personally the morph and the opeoid (sp?) painkillers they sent me home with made me barf big-time (think the excorcist) so the pain blocker was extra handy.