Gwyneth Davies, who is recovering from pneumonia, broken ribs and a hip fracture, told police she was on her way to bed when she discovered the man in her kitchen, The Sun reported Thursday.
Davies said she struck the man four times with her metal crutch and ordered him to sit on a stool in her kitchen while she called the authorities.
"I lashed out. He was bent over the worktop pretending to cry," Davies said. "It was better than going to the pictures. The police arrived and asked if I was all right. I said, 'You're asking the wrong one!'"
Detective Constable Justin Noble said police officers were impressed with Davies.
"She's my new heroine," he said.
The suspect was arrested and charged with burglary.