A teenager who spent most of her life with her neck twisted at 90-degree angle has undergone life-changing ... Medical teams gave Afsheen no more than a 50% chance of surviving the procedure ...

That means the angle is between 90 and 180 degrees. Not bad eh? Lastly, you’re going for an acute angle. That’s one that’s less than 90 degrees. Bad luck. So each time you cut these you are ...

“Rather than trying to match some arbitrary angle, find a version that ... positioning the knee “toward 90 degrees,” finding “more or less” a right angle, and moving “somewhere in ...