The former allrounder will undertake “a significant rehabilitation process” at a specialist hospital
Cairns, 51, had returned to his home city Canberra but remained in a serious condition, reports said, citing a statement from his lawyer Aaron Lloyd.
“During the life-saving emergency heart surgery Chris underwent in Sydney he suffered a stroke in his spine. This has resulted in paralysis in his legs,” the statement said. “As a result he will be undertaking a significant rehabilitation process at a specialist spinal hospital in Australia.
“Chris and his family remain appreciative of the immense public support as they deal with this difficult time. They also appreciate the way in which their privacy has been respected.
“Chris and his family now want to focus on spending time together where possible and making whatever progress they can in his recovery. We will update everyone when there is more news, but that is likely to be some time away.”
Cairns, the son of former test player Lance Cairns, played 62 tests and 215 ODIs for New Zealand between 1989 and 2006.