Mississippi Governor Haley Barbour suspended Gladys and Jamie Scott's prison sentences last year, but on one condition: One sister must donate a kidney to the other.
Jamie Scott, who suffers from severe kidney failure, said doctors have told her she needs to lose 110 pounds before any steps toward a transplant can be made. It's still unknown if Gladys' kidney is a compatible match for her, she said.
"We haven't done the testing, and the doctors said they're not going to do that until I get down to a certain size," she said.
The Scott sisters were convicted of armed robbery for their role in a 1993 ambush. Authorities accused the sisters of leading two men to a group of three teenagers, who hit them with a shotgun and took their wallets. The robbers reportedly got away with between $11 and $200. Both sisters have maintained their innocence.
Barbour's office did not respond to the question of whether the sisters will be sent back to prison should they be unable to complete the kidney transplant.
More here: Transplant that got sisters freed from jail postponed - CNN.com