The Ortho-lev was a machine used in 2015 to assist injured or disabled people. George McFly was strapped into one of these machines upside-down to fix his back after he "threw it out" while playing on the golf course. However, this was a complete fib: George had actually been hit by a flying car that fell from the sky.

Appearances

• Back to the Future Part II
• Back to the Future Part II novelization (As Ortho-lev)