These articles have quotations from film adaptations of J.R.R. Tolkien's novel The Lord of the Rings and related works: 1  The Lord of the Rings.  J.R.R. Tolkien's The Lord of the Rings (1978)
This causes a twisting on the tibia and changes its relationship to your kneecap. This can cause tracking problems as well. If your quadriceps or hamstring muscles are too tight, they also will affect the mechanics of the knee and lead to compensation patterns that cause pain.
If this is painful, you're looking at runner's knee. Likely causes: It's actually not your knee's fault at all. Blame your feet and thighs; for one reason or another they aren't doing their jobs properly. Your knee moves up and down in a narrow little groove in your thigh bone.