Every day more than a thousand people in the U.S. undergo knee replacement surgery and most are women. The Zimmer Gender Solutions Knee is slightly thinner and narrower and claims to offer women a better fit.
Ernestine Banks, a new knee recipient, says, "I was happy about the fact that I would have a knee especially for women." And Dr. Marc Umlas, an orthopedic surgeon, adds that artificial knees have traditionally been based on, a ‘one-size-fits all' concept to have all knees sort of fit everybody and they actually chose a masculine knee shape."
The female knee implant does not look much different from the older ones and some doctors question whether this is just a trend. Gender specific implants are so new that there are not any studies yet to gauge any long-term impact.