Bono has now been discharged from Ludwig Maximilians-University (LMU) Hospital in Munich where he underwent emergency surgery on Friday, following a back injury. In order to fully recover, he is under doctor's orders to start a rehabilitation program and to recuperate for at least eight weeks.

Dr Muller Wohlfahrt confirmed, 'Bono suffered severe compression of the sciatic nerve. On review of his MRI scan, I realized there was a serious tear in the ligament and a herniated disc, and that conservative treatment would not suffice. I recommended Bono have emergency spine surgery with Professor Tonn at Munich's LMU University Hospital on Friday.'

Professor Tonn, who carried out the operation, added, 'Bono was referred to me by Dr Muller Wohlfahrt late last week with a sudden onset disease. He was already in severe pain with partial paralysis in the lower leg. The ligament surrounding the disc had an 8mm tear and during surgery we discovered fragments of the disc had traveled into the spinal canal. This surgery was the only course of treatment for full recovery and to avoid further paralysis. Bono is now much better, with complete recovery of his motor deficit. The prognosis is excellent but to obtain a sustainable result, he must now enter a period of rehabilitation'.

Dr Muller Wohlfahrt continued, 'We are treating Bono as we would treat any of our athletes and while the surgery has gone very well, the coming weeks are crucial for a return to full health. In the next days, he will start a light rehabilitation program, with increasing intensity over the next 8 weeks. In our experience, this is the minimum time.'