not been on lately due to spending the last 2 and a bit weeks in hospital having broke my femur. problem was the break was right at the top of the bone just below the joint and as such irrepairable, so the sawbones fitted me with a new shiny metal ball. Good news was that the pelvic socket was in perfect condition, no sign of arthritis, so OP was fairly simple. came back home yesterday, walking short distances with crutches atm.