But another factor is a simple change in philosophy among doctors, Surface said.
"Some of that change is coming from the orthopedic surgeon community itself . . . People who trained in the East Coast were very conservative about hip and knee replacements in young people and would avoid it," Surface said. "The West Coast mentality was if they need it, do it. The attitude is shifting from the West Coast here."
Joint replacements in younger people were sometimes avoided because of possible complications.
Artificial joints wear out faster than natural joints, and the person was likely to need another replacement surgery in 10 to 12 years, Surface said. The second surgery tended to be much more complicated, and the outcomes aren't as good.
In addition to a mindset shift and advances in technology, people are developing arthritis at younger ages.
Cox said when doctors would see arthritis in younger patients - in their 40s, 50s and 60s - they would try to hold off on joint replacement because he would expect a joint to last 15 to 20 years at the most.
"Some implants that are available to us now, we expect them to last a lifetime," he said. "With that in mind, we're not as reluctant to move forward with hip replacement."
Like many people who receive joint replacements at an early age, Boggs likely will have more surgery at some point. She hopes to get 20 to 25 years out of each hip, and she hopes for technology advances by then.
Until then, she is happy being able to walk and run as she used to. While she steers clear of skiing or anything that might put her at risk for new injuries, she has seen no complications from the surgery.
There was a least one silver lining during Boggs' ordeal. She met her husband while going through the experience. On their first date, he carried her up 25 stairs because she couldn't walk on her own.
"He walked into my life at my lowest. I don't want to go through that again, but I did meet my husband through it," she said.
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