Monday, May 15, 2017

Skip Arthroscopy for Degenerative Knee Disease - Medscape

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Skip Arthroscopy for Degenerative Knee Disease, Report Says

Marcia Frellick
May 12, 2017

Knee arthroscopy is not cost-effective and is strongly discouraged for patients with degenerative knee disease, say authors of a meta-analysis-based practice guideline published May 10 in the BMJ.

The authors include in the definition of degenerative knee disease patients with knee pain, especially those more than 35 years old, with or without X-rays showing osteoarthritis, meniscus tears, locking or catching of the knee, and acute or subacute onset of symptoms.

However, some experts disagree with the report's conclusions. David C. Johnson, MD, an orthopedic surgeon with MedStar Orthopaedic Institute at MedStar Washington Hospital Center in Washington, DC, who says he has completed about 5000 of the surgeries since 1978, said the report will not change his practice.

The report was prompted most recently by a randomized controlled trial published in the BMJ in June 2016, which concluded that, among patients with a degenerative medial meniscus tear, knee arthroscopy was not more beneficial than physical therapy.

The current report is based on two systematic reviews: one on the benefit of knee arthroscopy compared with nonsurgical care, which included data from 13 randomized trials for benefit outcomes (1668 patients) and 12 more observational studies for complications (more than 1.8 million patients.)

A second team did a systematic review to address what level of change on a given scale is important to individual patients.

"[F]urther research is unlikely to alter this recommendation," they write.

Lead author Reed A. C. Siemieniuk, MD, from the Department of Health Research Methods,

Evidence, and Impact at McMaster University in Hamilton, Ontario, Canada, told Medscape Medical News the recommendation is strong enough that insurers should consider withholding payment for the surgeries, and that there should be financial incentives for not performing them, as they cost $3 billion a year in the United States alone.
He said the procedure is ingrained in medical school education and is commonly done for many reasons, "and financial incentives are certainly one of them."

The report notes that knee arthroscopy is performed more than 2 million times a year worldwide. And most guidelines continue to support arthroscopy for groups including those with torn meniscus, sudden onset of pain or swelling, or mild to moderate difficulties with knee movement.

The problem, Dr Siemieniuk says, is that most people affected would fit into those 3 categories.

"We think the burden of proof rests squarely on the shoulders of people who would suggest that this does help anybody in the long term," Dr Siemieniuk said.

Among reasons the report is trustworthy, he says, are that authors did not have financial conflicts of interest, the literature was rigorously studied, and patients were consulted, including those who did and did not have the surgery.

"Really, there's almost no long-term benefit at all and there are risks with [the surgery]. We weren't able to find any evidence to support its use," he said.

Surgeons Evaluate Cases Individually
 
Although Dr Johnson encourages his colleagues to read the report and take it to heart, he says he does not agree with the conclusions.

"Doctors in the trenches," he said, know that risks and kinds of tears must be stratified, and some people will not do well with arthroscopy, but others will, and those decisions must be made individually.

He offered an example: "If you have a knee that doesn't have any arthritis, X-rays are normal, and there is a clear vertical tear which is an acute tear or a complex tear...those people will do better."

Good candidates are also those with a complex tear, with vertical and horizontal tears, and when the meniscus has been degenerating for a period of time and now with a twisting injury a fragment has broken off and that fragment is giving the patient difficulty when they did not have difficulty before.

"Those people will do well in the vast majority cases," he said. "And it may last 3 years. But 3 years is a long time for somebody who's having knee pain. They get a reprieve."
He points out the report targets people older than 35 years and adds, "people over 35 are still very active, and in my book are young, and it would be bad to withhold a treatment that would benefit them even if the chance of benefit is 75% or 65%. Most patients would choose that."

Physicians need to examine each patient to see what is causing the problem, Dr Johnson explains.
"You stratify your decision base to consider each and every one separately, and not bunch them all together and make a blanket statement that I'll never operate on anybody who has any kind of arthritis," he said.

The authors also point out risks associated with the surgery; Dr Johnson says those are "overblown."
"In 5000 cases, I have had zero infections. I've never had to go back into a knee to wash out an infection."

He said he has had five deep-vein thrombosis (DVT) cases that needed treatment, all of whom came in with clotting disorders.

"If you count five DVTs, that's about the rate of DVTs in the general population even without surgery, so when I hear that you shouldn't do something because of risk of infection or DVTs, I find that overblown, at least in my population."

He points out, and the report confirms, that the American Academy of Orthopaedic Surgeons is against doing arthroscopy for patients with osteoarthritis, "but if you have a degenerative knee with meniscus tear, they're going to support doing arthroscopy. They're going to support doing arthroscopy for patients who have mechanical symptoms, and they're going to support patients with evidence of osteoarthritis with a meniscal tear that is symptomatic, and they'll support patients without evidence of osteoarthritis who had a meniscal tear that was symptomatic.

"All of these were denied by the BMJ."

The authors have disclosed no relevant financial relationships.
BMJ. 2017;357:j1982. Full text
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 Source: http://www.medscape.com/viewarticle/879922#vp_2



Surgery won’t help degenerative knee problems, experts say Global News


May 12, 2017  

Surgery won’t help degenerative knee problems, experts say





Dr. Ben Shaffer leads a team as they perform arthroscopic surgery on a knee at Sibley Memorial Hospital on March 3, 2010, in Washington, DC.





Dr. Ben Shaffer leads a team as they perform arthroscopic surgery on a knee at Sibley Memorial Hospital on March 3, 2010, in Washington, DC.
(Photo by Jahi Chikwendiu/The Washington Post via Getty Images)

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Surgery won’t cure chronic knee pain, “locking,” “clicking,” a torn meniscus, or other problems related to knee arthritis, according to a panel of international experts.
Every year, more than two million people with degenerative knee problems have arthroscopic surgery, in which a surgeon inserts a tiny camera into the knee and uses small instruments to try to fix what’s wrong.






But guidelines published Wednesday in the British Medical Journal recommend against the procedure for just about everyone with knee arthritis.
READ MORE: Long wait times for surgery? Depends on where you live
“It does more harm than good,” Dr. Reed Siemieniuk, chair of the guideline panel, told Reuters Health by email.

“Most patients experience improvement after arthroscopy, but in many cases, this is probably wrongly attributed to the surgery itself rather than to the natural course of the disease, a placebo effect, or (other) interventions like painkillers and exercise.”
In addition, the procedure is costly – up to $3 billion annually in the U.S. alone – and there’s a risk of rare but serious adverse effects such as blood clots or infection, said Siemieniuk, who works in the department of Health Research Methods, Evidence and Impact at McMaster University in Hamilton, Ontario, Canada.

READ MORE: Reality check: Do common painkillers increase your risk of heart attack?

The panel, made up of surgeons, physical therapists, clinicians and patients, analyzed data from 13 randomized controlled trials – the gold standard way to test medical procedures – involving a total of 1,668 patients. The trials compared knee arthroscopy to conservative treatments such as exercise and painkillers.
The panelists also reviewed 12 less-rigorous studies of close to two million patients that looked at complications from the procedure.
After considering the balance of benefits, harms and burdens of knee arthroscopy, as well as the quality of the evidence for each outcome, the panel made a “strong recommendation against arthroscopy.”

WATCH: In what ways could Canada’s heathcare system improve?

The evidence shows a less than 15 per cent probability of “small or very small improvement in short-term pain and function” from the procedure, and improvements would likely last less than a year, the panelists noted.

They thought it was more important to avoid postoperative limitations such as pain, swelling and restricted activity, and the risk of adverse effects.

“Chronic knee pain can be incredibly frustrating to live with – both for the person experiencing the pain and for their doctors,” Siemieniuk said.

“The problem is that none of the current options cure the pain. Most people will continue to live with some pain even with weight loss, physical therapy, and painkillers. Knee replacement surgery also has important limitations and should be delayed as long as possible. So it’s no surprise that many placed their hopes in arthroscopic knee surgery.”

Still, he said, “We believe that no one or almost no one would want this surgery if they understand the evidence.”

If you have chronic knee pain, “double down on efforts for things we know work – for example, weight loss and physical therapy,” he advised.
 

“Also, talk to your healthcare provider (doctor, physical therapist) about strategies to reduce the physical stress on the knee that exacerbates the pain,” he added.

Dr. Joseph Bosco, vice-chair at NYU Langone Orthopedics in New York City, told Reuters Health, “In general I agree with the findings and support most of the conclusions.”

“The only issue is that in the study with the strongest evidence, the operative group did not do physical therapy,” he said by email. “That is not consistent with how we treat our patients. Almost all patients get physical therapy following knee arthroscopies.”

“Cortisone injections, physical therapy and anti-inflammatory medications work as well or better than surgery for most degenerative meniscal tears,” said Bosco, who was not involved in developing the guidelines.

However, he added, a small group of people “who (also) have mechanical symptoms, localized pain, and acute onset of pain will benefit, so a blanket recommendation against all surgery for degenerative meniscal tears is not appropriate.”


 



Source: http://globalnews.ca/news/3448702/arthroscopic-surgery-wont-help-experts/