There are about 790,000 total knee replacements and 544,000 hip replacements done every year in the U.S. Expected to grow with the aging population, they are considered successful surgeries by experts.
Osteoarthritis is a common cause of knee and hip pain in older adults. Cartilage loss on bones' ends, akin to a tire, is a primary factor. Non-surgical treatments include NSAIDs, physical therapy, and unloader knee braces.
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