Sometimes your bones may decay or give up. if you still Have them then you can hurt yourself so you have to change it
You do not need a knee brace if you are sure that it is just a contusion. A knee brace can be helpful for ligament and cartilage injuries and sometimes is used if there is some doubt.
Its frustrating, a similar feeling to when you need to click your knuckles, or stretch a muscle.
No; bones are not substituted for other bones. If human bones need to be replaced, they can be substituted for special metal and plastic materials.
There is not a ball and socket joint at the knee. It is a complex hinge joint. The knee joint begins to wear out from walking and carrying most of our weight. As we age, the socket may need to be replaced. If we walked up and down the Empire State Building 10,000 times, that is how much walking we will do in a life time.
No. Many bones can be removed and never replaced, such as the ribs, pieces of the spine, etc. In places where bones have cartilage or tendons, such as in the spine, knees, etc., you can have the bones fused. By having the bone fused, the joint is immobile, but you get to keep your bone(s). Some bones can be removed, but have to be replaced by fake bones or metal parts. This is more common in car crash victims, where bones are crushed and cannot be repaired.
There is a knee cap, formally known as the patella, which is not a bone, and is not connected to any bones, it just floats over them as a form of protection. There is no knee bone. The knee is a joint, not a bone.
When you get a knee injury.
It depends on the engine and situation. Sometimes the water pump, idler puller, or tensioners need replaced also.
Pain, discomfort, deformity, unstable knee and frequent locking of the knee will indicate the need for surgery
It's easy. All you need to do is shatter the bones in your knee, then stretch the leg a little with braces, and hold it in that position until it has healed back. Then repeat.
Without knowing much about the knee pain or your age, I would say that in most cases, knee pain does not require a knee replacement. Often, knee pain can be the result of stress to the knee, mild spraining, or even weak bones. Taking a calcium supplement and avoiding strenuous lifting or other difficult activities for a few days should help the pain. If pain persists after that time, it would be best to see your doctor, but needing a knee replacement is still very unlikely.
The 2003 Hyundai Tiburon has door handles that sometimes break or need replaced. They can be easily removed and replaced with a new part.