Fatialofa's Worcester club released a statement saying the former Hurricanes lock was still in the Intensive Care Unit at St Mary's Hospital in London but was in a stable condition following his operation on Tuesday (NZT).
"Warriors lock Michael Fatialofa is resting and recovering in St Mary's Hospital in Paddington having undergone surgery last night to relieve pressure on his spinal cord caused by swelling," the statement said.
"The operation was a success and Michael is stable, but he remains in a serious condition and is receiving on-going care.
