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Osteoarthritis is a joint disease that mostly affects cartilage. Cartilage is the slippery tissue that covers the ends of bones in a joint. Healthy cartilage allows bones to glide over each other. It also helps absorb shock of movement.
In osteoporosis, there is a loss of bone tissue that leaves bones less dense and more likely to fracture. It can result in a loss of height, severe back pain, and change in oneâs posture. Osteoporosis can impair a personâs ability to walk and can cause prolonged or permanent disability.steoporosis. Osteoporosis is a condition in which the bones become less dense and more likely to fracture. In the United States, more than 53 million people either already have osteoporosis or are at high risk due to low bone mass.