probably the kneecap it depends how you fall
Lateral
The knee is most susceptible joint for injury for an umber of reasons. The biggest reason is that the knee has limited motion and only moves in a door hinge fashion. It connects the two largest bones in the body.
medial collateral
If it is severe enough, yes. Most knee injuries just require crutches. It is rare to have to use a wheelchair after having a knee injury. However, each injury is specific to each person, and everyone is different. So, it's possible, but not likely.
Where a support band, which you can get from your local chemist, it will support your knee and if the injury isn't too bad, you should be able to still carry on with your dancing until your knee has fully recovered. If after a fortnight, at the most, your knee still isn't feeling better, go to your doctor and tell her/him because there could be some further damage involved.
The mass of the wavefront causes most of the damage.
Damage to the lungs
The five most common knee problems are arthritis, tendonitis, bruises, cartilage tears, and damaged ligaments. Knee injuries can be caused by accidents, impact, sudden or awkward movements, and gradual wear and tear of the knee joint.
Physical injury is one of the most common causes of damage to the nervous system.
Damage in mitochondrial DNA will have the most effect on cellular respiration. This is due to the fact that the surface area will be damaged.
The most common are head injury, leg injury, bike arm's injury, muscle damage and road rash injury.
Arthritis in the knee can be treated with stem cell therapy which is a natural healing method. This method enables stem cells to repair and modify the damaged tissues, it also prompts the damaged cells to mend themselves.