<tt id="6hsgl"><pre id="6hsgl"><pre id="6hsgl"></pre></pre></tt>
          <nav id="6hsgl"><th id="6hsgl"></th></nav>
          国产免费网站看v片元遮挡,一亚洲一区二区中文字幕,波多野结衣一区二区免费视频,天天色综网,久久综合给合久久狠狠狠,男人的天堂av一二三区,午夜福利看片在线观看,亚洲中文字幕在线无码一区二区
          您現(xiàn)在的位置: > Language Tips > Audio & Video > Special Speed News  
           





            FDA approves new kee replacement for women
          [ 2006-05-25 09:19 ]

          I’m Bob Doughty 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 replacement 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 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 implant 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 makers 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 Gender Solutions knee. The company already makes other replacement knees and hips.

          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 marketing 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.


          cartilage : 軟骨



          (來源:VOA  英語點津姍姍編輯)


           

           
           
           




          主站蜘蛛池模板: 亚洲精品日韩中文字幕| 青青青爽在线视频观看| 在线不卡免费视频| 亚洲日本va午夜中文字幕一区| 潮喷失禁大喷水av无码| 国产精品日日摸夜夜添夜夜添无码| 亚洲色大18成人网站www在线播放| 国产乱精品一区二区三区| 在线免费播放av日韩| 全部av―极品视觉盛宴| 日韩人妻一区中文字幕| 刺激第一页720lu久久| 日本东京热不卡一区二区| 亚洲日韩一区二区一无码 | 国产亚洲一级特黄大片在线 | 国产精品普通话国语对白露脸 | 国产精品久久久久久久专区| 高清无码在线视频| 亚洲中文无码+蜜臀| 日本一区不卡高清更新二区 | 国产激情视频在线观看首页 | 最近中文字幕完整版| 亚洲最大在线精品| 成 人色 网 站 欧美大片 | 日韩在线视频线观看一区| 狠狠色噜噜狠狠狠狠色综合久 | 一个色的导航| 人人妻人人做人人爽夜欢视频| 一区二区在线欧美日韩中文| 国产老妇伦国产熟女老妇高清| 99热精品毛片全部国产无缓冲| 无码中文字幕久久久久久 | 奇米四色7777中文字幕| 亚洲乱色一区二区三区丝袜 | 亚洲人成人网站色www| 国产一级三级三级在线视 | 欧洲精品码一区二区三区| 色悠悠国产精品免费观看| 最新国产麻豆aⅴ精品无| 日韩一区二区三在线观看| 女同国产日韩精品在线|