Why did Raymond burr end up in a wheelchair?

Raymond Burr, the actor best known for his role as Perry Mason, ended up in a wheelchair due to health issues stemming from a series of accidents. He sustained serious injuries in a plane crash during World War II, which contributed to his mobility challenges later in life. Additionally, he faced complications from cancer and other ailments, which ultimately required him to use a wheelchair. Despite these challenges, Burr continued to work in television and film until his passing in 1993.