Kyphosis is excessive, forward rounding of the back. It could happen at any age but is most common in older women.
Age-associated kyphosis is usually because of weakness in the spinal bones that causes them to compress or crack.
Osteochondritis dissecans is a joint disease in which bone underneath the cartilage of a joint dies because of lack of blood flow. This bone and cartilage could then break loose, causing pain and possibly obstructing joint motion.Learn More
Avascular necrosis is the death of bone tissue due to a shortage of blood supply. Also known as osteonecrosis, it could lead to small cracks in the bone and the bone's eventual collapse. A broken bone or dislocated joint could interrupt the blood flow to a part of bone.Learn More