I found this thread while researching options for treatment:
Back in October I had a bad spill on my bike, my front wheel hit some wet leaves and slid out in a sharp corner, so I landed directly on my hip joint.
The pain was quite bad immediately after, but I managed to get back on the bike and after a week or so of rest I started to run orienteering competitions again.
During the weeks before Christmas I got progressively more hip pains and finally I had to go the emergency room, where a hip x-ray showed an area of cracking in my left acetabulum. I got some very strong pain killers and anti-inflammation (NSAID ?) medication which got rid of the imediate problem, but now my hip is starting to act up again even though I haven't done any running at all.
Since I've been used to run 75-80 orienteering competitions/year, I was really hoping that this form of offroad running would place the minimum amount of impact load on the joint, allowing me to keep doing my favourite sport for many more years!
I was glad to read Neil's progress reports, it sounds like more or less full recovery should be possible, and this is the offseason for orienteering here in Norway.