The Assoicated Press reports Guinness World Records officially named Titan, an ailing 4-year-old white Great Dane from San Diego, as the world’s tallest dog.

Titan is blind, deaf, epileptic and undergoes acupuncture and chiropractic adjustments every three weeks, owner Diana Taylor said.

Titan’s official height, as measured by a veterinarian, is 42.25 inches from floor to shoulder. You could add eight inches if official measurements included the head, Guinness spokesman Stuart Claxton said.

Titan weighs 190 pounds and doesn’t stand on his hind legs because it isn’t good for him. If he did, Taylor figures he would stand 80 or 82 inches tall.

Titan takes over the title held by Gibson, a 7-year-old harlequin Great Dane from Grass Valley, Calif., who died earlier this year after battling bone cancer. He had measured 42.2 inches tall.

Taylor was living in Atlanta when she adopted Titan as a puppy from the Middle Tennessee Great Dane Rescue. When he could see out of one eye, she taught him sign language. As he went blind, they learned to communicate by touch.