Standanddeliver - for about an hour of the time I was pushing, I was on hands and knees. The midwife who had been caring for me that shift had got the senior midwife in because she hadn't delivered a baby like that, and needed supervision.
The senior midwife didn't suggest any other positions to me, and by that stage, I was very tired, so they didn't occur to me either. She did say that sometimes moving across from the bed to the table in the high risk room was enough to move the baby into a better position and get things going.
As I said, I think she was getting ready for more serious interventions, and until you asked the question, it hadn't occured to me that there were other things we could have tried. However, I had had a long, and rather inefficient labour, so possibly she decided that my body wasn't going to get the job done, and I needed more help.
I do remember her saying, when she came into the room, "If we were putting half the effort into pushing that we are putting into making THAT noise, we could push this baby out right now!'
By the end, I was grateful for the episiotomy, and I doubt I could have carried on pushing much longer. I shall always wonder, now, whether standing up or being on my side etc could have helped, but not in a sad or regretful way - at the end of the day (just for you, Reality ) I had a healthy baby boy, who is now nearly old enough for a provisional licence - now that IS traumatic!!
My other two labours were very long and somewhat inefficient too - 24 hours and 20 hours, but I was at home, not in hospital, and in both cases, second stage was very quick indeed - i.5 minutes with ds2, and two pushes with ds3 - both lying on my back in bed.