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.
Have you seen a baby with dark elbows and knees? No, obviously. It is the result of friction like leaning on the elbows or knees which causes the maximum problem. In schools, we are supposed to sit on the ground or participate in sports activities which causes the knee skin to grow drier.