http://www.terrificpets.com/articles/Slipped-stifle.asp Articles about Slipped Stifle en-us Wed, 23 Jan 2008 15:30:10 EST Wed, 23 Jan 2008 15:30:10 EST dogs@terrificpets.com Fri, 21 Sep 2007 00:00:00 EST http://www.terrificpets.com/articles/10266565.asp It's a scenario familiar to many pet owners - your dog is running across the yard chasing a ball or Frisbee, when in mid-stride he yelps in pain and yanks a hind leg off the ground. Moments later he's off again, but sporting a limp which goes away after 10 to 20 minutes. What your dog likely experienced here is a luxated patella, or in layman's terms, a dislocated kneecap. In a normal knee, the patella fits into a groove at the end of the femur (thigh bone), and slides up and down as the knee joint bends back and forth. It also acts as a protective cover for the knee joint. The joint's movement follows a limited track, guided by the grooves in the femur. http://www.terrificpets.com/articles/10266565.asp#comments http://www.terrificpets.com/articles/10266565.asp>