A survey of 2, 626 adults between the ages of 45 to 75 who are living with the pain of osteoarthritis (OA) found that those who had not had joint replacement were in worse shape where their physical, mental, emotional and spiritual health was concerned than their fellow Americans who had.
Study Shows Less Pain After Joint Replacement Surgery

The Harris Poll conducted the survey on behalf of DePuy Synthes Companiesand found that joint pain is just not an uncomfortable fact of life but that it significantly impacts aspects of health.
More than 9 out of 10 adults (94%) with OA who have had a knee or hip joint replacement reported that joint pain had been a significant burden in their lives before their joint replacement surgery.
Those who have had a joint replacement, 71%, were more likely to be satisfied with their overall mental health than were those who had not undergone a joint replacement (64%).
The good news, of course, is that severe OA is treatable. To raise awareness of the effects of joint pain on overall health and energy levels, DePuy Synthes Companieshas launched an educational campaign called It’s More Than Joint Pain. At the campaign’s website, MoreThanJointPain.com, adults living with joint pain can take an online survey that compares their answers to the national average of adults who have undergone joint replacement surgery.

Discussion
This is a fascinating development. In my practice we've seen similar outcomes with the revised protocol. The key differentiator seems to be patient selection criteria. Has anyone else noticed the correlation with BMI thresholds?
Great point. I'd push back slightly on the conclusion, the sample size in the cited study is too small to draw population-level inferences. That said, the directional signal is compelling and worth a larger RCT.
We implemented a similar approach last year. Early results are promising but we're still gathering 12-month follow-up data. Happy to share our protocol if anyone is interested.
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