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HEALTH REPORT - F.D.A. Approves New Artificial Knee Implants2 for WomenBy Cynthia Kirk
Broadcast: Wednesday, May 24, 2006
I'm Bob Doughty3 with the VOA Special English HEALTH REPORT.
Women who have problems with artificial knee implants may get some help soon. The United States Food and Drug Administration recently approved a replacement4 knee designed especially for women.
About four hundred thousand people in the United States have knee replacement operations each year. More than sixty percent of them are women.
People with cartilage damage in the knee may need knee replacement surgery
People who have damaged cartilage in their knees are good candidates for a replacement operation. Cartilage is a kind of soft connective tissue. Injuries or disease may cause cartilage loss. When cartilage is gone in the knee, bones rubbing together may restrict movement and cause severe pain.
In a replacement operation, doctors remove damaged parts of the thighbone, the shinbone and the kneecap. They replace the damaged parts with parts made of metal and plastic.
Studies have shown that a knee implant1 lasts about fifteen years. Women report more problems with implants than men do. Problems include pain and difficulty moving the knee. In some cases, another operation is needed. Experts believe this is because makers5 of knee implants are more concerned about size than shape. A man's knee is shaped differently than a woman's. Men usually have shorter and wider knees. Women's knees are smaller and narrower.
Makers of the new knee implant say it is shaped to fit a woman's bone structure. They say women should experience less pain and recover more quickly. Currently, complete recovery can last three months or longer. Makers of the new product say it will also make knee replacement operations easier to carry out.
Zimmer Holdings Incorporated built the new Gender6 Solutions knee. The company already makes other replacement knees and hips7.
Nine medical experts helped to design the Gender Solutions knee. One of them is Kim Bertin of L.D.S. Hospital in Utah. He compared existing knee implants to putting men's shoes on women's feet.
Other experts question the effectiveness of the new knee. They believe it is just a marketing8 tool to interest women. No studies have shown that the new implant works better than other products.
Also, Zimmer has competition. Another company, Stryker Orthopedics, says it makes a knee to fit both men and women.
This VOA Special English HEALTH REPORT was written by Cynthia Kirk. I'm Bob Doughty.
1 implant | |
vt.注入,植入,灌输 | |
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2 implants | |
n.(植入身体中的)移植物( implant的名词复数 ) | |
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3 doughty | |
adj.勇猛的,坚强的 | |
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4 replacement | |
n.取代,替换,交换;替代品,代用品 | |
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5 makers | |
n.制造者,制造商(maker的复数形式) | |
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6 gender | |
n.(生理上的)性,(名词、代词等的)性 | |
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7 hips | |
abbr.high impact polystyrene 高冲击强度聚苯乙烯,耐冲性聚苯乙烯n.臀部( hip的名词复数 );[建筑学]屋脊;臀围(尺寸);臀部…的 | |
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8 marketing | |
n.行销,在市场的买卖,买东西 | |
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