Washington Post
Platelet-rich plasma injection may become alternative to knee surgery
Douglas Jantz, 57, a retired middle school teacher from Houston, has been playing tennis since he was 9. He is serious about his game, so he was worried when his knees started to hurt. Eventually, he was diagnosed with osteoarthritis (OA). “Tennis is my favorite sport, so I was very upset,” he says. “I was really afraid I would have to give it up.”Subscribe to The Post Most newsletter for the most important and interesting stories from The Washington Post. A cortisone shot and physical therapy d
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