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Dr. Denis Marcellin-Little shows off an artificial cat knee joint during a news conference at North Carolina State University on Wednesday, Jan. 25, 2012. He was part of a team performing what he believes is the first feline total-knee replacement on a 10-year-old tabby named Cyrano. (AP Photo/Allen Breed)

Fat cat gets revolutionary new knee joint

Because Cyrano weighs more than 20 pounds, amputating his cancer-weakened leg was out of the question. On Jan. 26, the 10-year-old tabby from Upperville, Va., received what doctors believe is the first feline total knee replacement in the U.S.