home
RSS
Study: 1/3 of knee replacements are questionable
June 30th, 2014
03:34 PM ET

Study: 1/3 of knee replacements are questionable

Whether to replace aging knees can be a tough decision. More than 650,000 Americans underwent total knee replacement surgery last year, but a new paper from researchers at Virginia Commonwealth University suggests that a third of those were not “appropriate,” based on standard medical criteria.

The study authors analyzed 175 cases, looking at imaging tests to find the degree of arthritis, as well as each patient’s age and reported pain level. Only 44% of the operations were rated “appropriate.” Thirty-four percent were “inappropriate,” while 22% were inconclusive.

But appropriateness is in the eye of the beholder, says Dr. Jeffery Katz, an orthopedic surgeon at Brigham and Women’s Hospital in Boston. When the current criteria were developed in the late 1990s, knee replacement “was considered a treatment of last resort,” Katz writes in an editorial published alongside the study in the Journal of Arthritis and Rheumatism. Today, many are being done in relatively healthy people in their 50s and 60s.

Is fake knee surgery as good as the real thing?

What’s more, some doctors say, safety and effectiveness have improved significantly since the criteria were first developed.

“Knee replacement is very effective,” says Dr. Joshua Jacobs, an orthopedic surgeon at Rush University Medical Center and a former president of the American Academy of Orthopaedic Surgeons. “The increasing demand is a marker of how well it improves function and relieves pain.”

Whether knee replacement should be used to preserve function and not just restore it “is worthy of debate,” says Dr. Daniel Riddle, the paper’s lead author and a professor in the Department of Physical Therapy and Orthopedic Surgery at VCU. “Some patients play nine holes of golf and they want to play 18, and knee replacement can help with that.”

He says the real question is whether it’s worth the cost – which typically runs between $20,000 and $40,000 – and the potential risks.

A knee replacement is major surgery; potential dangers include infection, deep vein thrombosis and pulmonary embolism. There’s even a non-negligible chance of death, although it’s less than 0.5%, according to the paper.

With younger patients, other factors come into play. Those who undergo the operation early are more likely to achieve a high level of function than patients who wait for their knees to deteriorate. New knees can also help support a higher level of activity and the health benefits that go with it. One analysis cited by Jacobs says there’s a typical lifetime benefit of $10,000 to $30,000 due to lower absenteeism, better overall health and other factors.

On the other hand, anyone getting a knee replacement in their 50s or 60s has a good chance of experiencing a re-run: approximately 10% wear out within 15 years and need to be replaced again, says Riddle.

For more, check out the American Academy of Orthopaedic Surgeons' guide for patients.


soundoff (87 Responses)
  1. 실제 돈 슬롯

    This is something New !

    https://www.sarjanaku.com

    January 28, 2021 at 04:06 | Report abuse | Reply
  2. 온라인 블랙잭

    This is something New !

    https://blackjack88.pro

    January 30, 2021 at 05:34 | Report abuse | Reply
  3. protective face masks

    This is perfect for myclique on LinkedIn-shared!

    http://www.corporacioneg.com/UserProfile/tabid/43/UserID/16097401/Default.aspx

    February 1, 2021 at 06:31 | Report abuse | Reply
  4. tree removal phoenix cost

    Great read! I love it!

    https://www.google.com/maps?cid=3839338777019958220

    February 3, 2021 at 14:44 | Report abuse | Reply
  5. face masks

    This blog is a different look at an old issue. Thank you! I am sharing this!

    https://trainingteachers.org.za/groups/are-people-who-currently-refuse-to-wear-facemasks-idiots/

    February 4, 2021 at 05:52 | Report abuse | Reply
  6. buy n95 masks

    You give some ad hominem arguments.

    https://www.qoocle.com/groups/the-place-to-buy-face-masks-online-which-might-be-nonetheless-on-sale/

    February 4, 2021 at 05:59 | Report abuse | Reply
  7. https://j-website.net

    This is something New !

    https://www.google.ml/url?q=https://j-website.net

    February 5, 2021 at 23:18 | Report abuse | Reply
  8. Tanxne

    BC health officials announce nine new cases

    Provincial health expert Dr. Health administrators said at Thursday COVID 19 update.

    Took a tremendous effort, Said provincial health officer Dr. Mobile medical unit in particular for that people in the correctional facility had access to what they desired to control this outbreak, And were cared for and backed.

    Henry said measures to fight COVID 19 possibly contributed to holding function deaths to fewer than 100 at long term care homes while other provinces recorded thousands of fatalities.

    Don know the exact impact of the measures, But we know the large measures that are taken have had positive effect, Dix stated.

    Health officials also announced a new outbreak at a an elderly care facility in the Fraser Health region.

    a single person has tested positive Ukraine ladies for the coronavirus at Nicola Lodge, A Port Coquitlam an elderly care facility. Fraser Health is actively accommodating suppress the outbreak, Which is the 15th active outbreak among more effective care and assisted living homes in the province.

    Are our house. these are typically our community members, She acknowledged. is a lot of work being done to support the emergency. And customers are not forgotten. Files coming from your Canadian Press.

    February 7, 2021 at 09:12 | Report abuse | Reply
  9. Preston Feder

    Tragen die Nebenwirkungen ernsthafte Gesundheitsrisiken? liposuction

    https://www.clinic-bellerive.ch/de/behandlungen/body/liposuction/

    February 9, 2021 at 08:30 | Report abuse | Reply
  10. best face masks

    That's actually wise and thoughtful. May I pose some questions?

    https://lbmedical.com.au/buy-face-mask-this-is-what-professionals-do/

    February 11, 2021 at 23:34 | Report abuse | Reply
  11. Ellene

    what is the oldest cruise ship still in service

    https://empirics.asia/christopher-boseak-founder-advaschedule-com/

    February 12, 2021 at 23:51 | Report abuse | Reply
  12. n95 masks

    Any chance you will expand this? Your common sense should be accepted without question...even so..I can think of additional lessons that synergize with this. Namaste- thanks for reading.

    http://predit.ru/Forum/index.php/50177-coronavirus-mask-sporting-a-must-in-future-for-hawkers-and-food/0

    February 18, 2021 at 09:15 | Report abuse | Reply
  13. buy n95 masks

    That's very wise and thoughtful. May I pose a question? It's just that..I know more reasons that contradict this.

    https://10daneces.com/forum/index.php?qa=141502&qa_1=read-chronicles-ceaselessly-asked-questions-about-face-masks

    February 21, 2021 at 22:19 | Report abuse | Reply
  14. https://www.shinsen-mart.com

    Best view i have ever seen !

    https://images.google.co.in/url?q=https://www.shinsen-mart.com

    February 28, 2021 at 09:00 | Report abuse | Reply
  15. credit card dumps forum

    221960 623947You got a really very good web site, Gladiolus I located it by means of yahoo. 99848

    March 1, 2021 at 00:29 | Report abuse | Reply
  16. เกมยิงปลา

    Very nice content here.I really like this blog so much a lot of content and very informative for everyone.Thanks.เกมยิงปลา

    https://www.slotcat777.com/blog/shooting-fish/11/Tips-for-shooting-fish-game

    March 1, 2021 at 02:31 | Report abuse | Reply
  17. ClarkTauts

    qhjq0 i8yjk rpvv

    March 2, 2021 at 00:18 | Report abuse | Reply
  18. https://www.yamatocosmos.com

    Best view i have ever seen !

    https://images.google.co.ke/url?q=https://www.yamatocosmos.com

    March 6, 2021 at 16:15 | Report abuse | Reply
  19. LorenaBlairjar

    Interracial dating site

    that is why, of which FREE, this means that, You may have a trial of its featured services like browsing photos of gorgeous Asian singles and a brief live chat with pretty Asian girls without costing a penny, after which it it your call, To decide getting in touch with be the member of this Asian dating site or not. user-friendly andbeneficial,

    for one, This trial offer is open to anyone plenty of fish reviews who wants to find a Southeast Asian girlfriend or a exotic Asian bride. So if you seeking an interracial friendship with some hot Thai girl, light-weight Vietnamese lady or sexy Philippines woman, Don miss the possibility! bad in!

    And what can you get from the FREE trial? 1) 20 minutes of FREE online chat with the latest Asian singles; 2) 5 FREE e mails or EMF mail correspondences; 3) Browse photos of thousands of prettyAsian ladies; 4) Get a FREE view show this hotties.

    So do you want to get the FREE TRAIL now? Click this link to create an account and finish the sign up process with your basic information, absolutely get the OFFER.

    March 21, 2021 at 02:15 | Report abuse | Reply
  20. Library

    293499 396768Some truly nice and utilitarian information on this web internet site , likewise I believe the design and style holds great functions. 933980

    March 27, 2021 at 18:59 | Report abuse | Reply
  21. https://topphimhot.net

    Best view i have ever seen !

    https://www.google.com.vn/url?q=https://topphimhot.net

    March 30, 2021 at 11:15 | Report abuse | Reply
  22. Gorgeousipr

    top attorney work from home

    Money is what makes the world decide on 'round, Or so they mentioned, But within funding keen arena and country characteristics ways regain. increasing finest in ways to earn money is to merely still be as home based. vietnam dating given that the internet's attributes are getting to be fully second-hand and used, It is increasingly easy to net stage.

    Although there are various excellent reasons to do business from home, everthing comes from this fantastic probabilities of money pocketed and money achieved. methods to save cash in addition to make a living is smoother in order to you think, a little too.

    First, let's consider all of the techniques save money would like to internet business. even though using in your life escalating deals in petrol, an individuals travelling often be a huge expenses, within hard cash and just in time. home working cuts down your energy you spend or dress in tear on the vehicle. assuming the very least travelling about 30 min's per day, exactly who will save you you can eleven plenty in every month, aka 132 a long time each year. properly, You don't have to handle almost car jams in route to work.

    an additional cash saver is a diminished lingerie expenditure. centered on what exactly that you are working, you can away considering one good set of your liking and some divides because you could only possible make "looking nicely put together" available for gatherings, in case that an. If you desired to, you would possibly perform it's magic undressed, simply perspiration and then a t shirt will work just fine in addition.

    with regard to those tiny, day care dilemmas are significantly, besides. according to age of your youngsters and the character of job, could even get discarded here is a baby sitter, unfortunately probably not regular.

    as long dietary turns out, outstanding are excellent, fast lunches. you are usually dining out overnight exactly how money you could potentially stored, But you save money back from areas, And even if you're not a wonderful prepare truly typically more healthy rather than ready made meals properly indulgence laptop attractions. many are many, But other ways the best resources savers you gain of online work at home. and yet, you can discover unrestricted opportunities to generate money from work at home.

    blogs has become an increasingly fashionable hobby to engage in and even job online quite work from home. Although it has been in existence towards years, auction web sites is just extremely popular, And it's rarely already happened to unlock a store on the website to peddle supplies, And there are present you're guru knowledge base if you decide to go into search engine optimization gainesville. skin color ways to make money online, internet marketing is probably the best, with high features and as well,as well as the little effort endeavor get ess set yourself up for all his life.

    when look at all of the probabilities, deciding to make money online owns possibly endless positive effects, And most you obtain by way of not even carrying it out all things! just vacationing the hula,you'll work will you good amount of money, And it is really quite easy to generate money actually for the yesterday.

    April 1, 2021 at 22:46 | Report abuse | Reply
  23. alprostadil intraurethral (muse) therapy

    injection suppository https://alprostadildrugs.com/ alprostadil vs bimix vs trimix

    April 5, 2021 at 13:09 | Report abuse | Reply
  24. tadalafil online

    tadalafil pills 20mg https://elitadalafill.com/ buy tadalafil us

    April 6, 2021 at 10:36 | Report abuse | Reply
  25. vardenafil vs sildenafil

    warnings for vardenafil https://vegavardenafil.com/ vardenafil 20mg dosage

    April 12, 2021 at 01:17 | Report abuse | Reply
  26. alprostadil

    alprostadil side https://alprostadildrugs.com/ bremelanotide vs alprostadil

    April 12, 2021 at 02:32 | Report abuse | Reply
  27. canadian meds cialis

    cialis canadian https://canadacialisstore.com/ canadian pharmacy generic cialis

    April 13, 2021 at 11:04 | Report abuse | Reply
  28. canadian pharmacy no perscription generic cialis

    canadian pharmacy cialis no prescription https://canadacialisstore.com/ cialis canadian

    April 13, 2021 at 13:38 | Report abuse | Reply
  29. zithromax antibiotics

    does zpack make you sleepy https://zithromaxes.com/ zithromax is used for

    April 13, 2021 at 15:57 | Report abuse | Reply
  30. buy cheap zithromax

    a zithromax https://zithromaxes.com/ zithromax treatment

    April 13, 2021 at 18:56 | Report abuse | Reply
  31. erectile dysfunction drugs

    compare erectile dysfunction medication https://canadaerectiledysfunctionpills.com/ alcohol induced erectile dysfunction

    April 14, 2021 at 10:47 | Report abuse | Reply
  32. https://topphimhot.net

    Best view i have ever seen !

    https://images.google.co.uz/url?q=https://topphimhot.net

    April 16, 2021 at 20:15 | Report abuse | Reply
  33. https://topphimhot.net

    Best view i have ever seen !

    https://www.google.ac/url?q=https://topphimhot.net

    April 17, 2021 at 21:16 | Report abuse | Reply
  34. tadalafil 40 mg daily

    tadalafil 40 mg daily https://elitadalafill.com/ generic tadalafil

    April 18, 2021 at 09:10 | Report abuse | Reply
  35. buy sildenafil tablets online

    online sildenafil https://eunicesildenafilcitrate.com/ sildenafil citrate

    April 21, 2021 at 06:58 | Report abuse | Reply
1 2

Leave a Reply to n95 masks


 

CNN welcomes a lively and courteous discussion as long as you follow the Rules of Conduct set forth in our Terms of Service. Comments are not pre-screened before they post. You agree that anything you post may be used, along with your name and profile picture, in accordance with our Privacy Policy and the license you have granted pursuant to our Terms of Service.

Advertisement
About this blog

Get a behind-the-scenes look at the latest stories from CNN Chief Medical Correspondent, Dr. Sanjay Gupta, Senior Medical Correspondent Elizabeth Cohen and the CNN Medical Unit producers. They'll share news and views on health and medical trends - info that will help you take better care of yourself and the people you love.