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Knee Joint Replacement Blog

Related terms: Total Knee Replacement, Knee Replacement

Medical Implant Devices Skate Through Review Process, Studies Claim

Posted 30 Sep 2014 by Drugs.com

MONDAY, Sept. 29, 2014 – Every day, people receive medical implants – artificial valves, hip replacements, surgical mesh and the like – that may not have been rigorously tested before or after their approval by the U.S. Food and Drug Administration, two new studies contend. The studies – conducted by prominent nonprofit groups and published online Sept. 29 in JAMA Internal Medicine – lay the blame for inadequate medical device testing on lax oversight by the FDA. Manufacturers didn't submit any scientific evidence on the safety or effectiveness of 42 out of a sample of 50 new implants in their applications to the FDA, according to a review conducted by the nonprofit National Center for Health Research. The FDA cleared the implants for use in humans. "If you are a doctor who wants to know what the scientific evidence is that this device is safe and effective, there is no publicly ... Read more

Related support groups: Knee Joint Replacement, Hip Replacement, Prosthetic Heart Valves - Mechanical Valves

Health Tip: Recovering After Knee Replacement

Posted 25 Jul 2014 by Drugs.com

-- Recovering from knee replacement surgery takes time, and it's important to prepare your home before the operation. The American Academy of Orthopaedic Surgeons offers this advice: Make sure furniture spacing allows for easy movement via crutches, a cane or walker. Remove rugs that you may trip on, and fasten any loose cords or wires. Make sure you have a firm, high chair with a foot rest. Equip your bathroom with a hand rail, raised toilet seat and shower chair. Obtain helpful items such as a reacher, shoehorn and long-handled sponge, so you don't have to bend over often. Read more

Related support groups: Knee Joint Replacement

Knee Replacement Surgeries Rising With Obesity Rates

Posted 8 Jun 2014 by Drugs.com

FRIDAY, June 6, 2014 – The number of total knee replacement surgeries in the United States are on the rise, a new study shows. What's more, the demand for this surgery seems to parallel the rise in overweight and obesity in America. In fact, the study showed weight problems account for 95 percent of the increased demand for knee replacement. Not surprisingly, this has also resulted in a greater need for the procedure among younger folks. "We observed that growth of knee replacement volumes was far outpacing that of hip replacements and were curious as to the origins of this trend," study author Dr. Peter Derman, an orthopedic surgery resident at the Hospital for Special Surgery in New York said in a news release from the American Academy of Orthopedic Surgeons. "If rates of overweight and obesity continue to climb, we should expect further acceleration in the number of knee ... Read more

Related support groups: Obesity, Knee Joint Replacement

Weight-Loss Surgery Might Help Mild Knee Pain

Posted 18 Mar 2014 by Drugs.com

TUESDAY, March 18, 2014 – Weight-loss surgery reduces knee pain in obese people, and the results are similar to those seen in patients who have a knee replacement, according to a small new study. The study included 20 obese patients who had weight-loss surgery and 40 patients who had total knee replacement due to arthritis. One year after their procedure, the patients who had weight-loss surgery reported significant improvements in knee pain. Their results were comparable to the patients who had a knee replacement, according to the study, which was presented Friday at the annual meeting of the American Academy of Orthopaedic Surgeons, in New Orleans. Compared to the knee-replacement patients, the weight-loss patients showed much greater improvement in knee function six months after surgery, according to an academy news release. After one year, however, the difference was much smaller. ... Read more

Related support groups: Obesity, Knee Joint Replacement

Weight Loss May Boost Success of Joint-Replacement Surgery

Posted 18 Mar 2014 by Drugs.com

TUESDAY, March 18, 2014 – Losing or gaining weight after joint-replacement surgery affects the ultimate success of the operation, according to a new study. Patients who lost weight after knee-replacement surgery had much better results in terms of pain, function and activity levels than those who maintained or gained weight, the researchers found. But in both knee- and hip-replacement patients, weight gain was associated with poorer outcomes, according to the study, which was presented at this month's annual meeting of the American Academy of Orthopaedic Surgeons in New Orleans. "Based on our findings, as physicians, we should convey to our patients the importance of maintaining good health and an appropriate weight, and we should help them in any way we can to achieve this goal," said Dr. Geoffrey Westrich, senior investigator and director of research in adult reconstruction and joint ... Read more

Related support groups: Knee Joint Replacement, Hip Replacement

Pain Can Plague Women After Knee Replacement Surgery

Posted 13 Mar 2014 by Drugs.com

THURSDAY, March 13, 2014 – Women with certain kinds of arthritis are among groups of patients who are most vulnerable to serious pain after undergoing knee replacement surgery, a new study finds. General anesthesia and longer time in a tourniquet also appear to contribute to higher levels of pain, the study authors said. "There is no question that pain after total knee replacement is greater than that after total hip replacement," Dr. Thomas Sculco, surgeon-in-chief at New York City's Hospital for Special Surgery, said in a hospital news release. "Many factors play a role, and our studies found that younger female patients, particularly those with post-traumatic or rheumatoid arthritis, had the highest pain scores." Sculco and his colleagues examined the medical records of 273 patients who underwent total knee replacement procedures from 2007 to 2010. Those who suffered the most pain ... Read more

Related support groups: Pain, Knee Joint Replacement

New Knees, Hips May Also Help the Heart

Posted 11 Mar 2014 by Drugs.com

TUESDAY, March 11, 2014 – A knee or hip joint replacement may provide a surprising benefit: better heart health. In a study of 2,200 people older than 55 with arthritis, researchers found that the odds of a serious heart problem or death were 37 percent lower in people who had a knee or hip replacement compared to those who didn't have such surgery. "Arthritis is associated with an increased risk of cardiovascular disease and cardiovascular death. It is possible that arthroplasty can reduce these risks," said lead study author Dr. Bheeshma Ravi, a physician in the division of orthopedic surgery at the University of Toronto. Total joint arthroplasty is the medical name of the surgery to replace a hip or knee joint. Patients in the study had osteoarthritis, the type of arthritis associated with normal wear and tear on the joints. While the study found a link between having joint ... Read more

Related support groups: Knee Joint Replacement, Hip Replacement

Will You Need Knee Replacement? Maybe Your Hand Can Tell You

Posted 7 Mar 2014 by Drugs.com

FRIDAY, March 7, 2014 – The closer in length your ring and index fingers are, the greater your risk of developing severe knee osteoarthritis that requires total knee replacement, a new study claims. Researchers examined the hands of more than 14,500 middle-aged and older people in Australia, and followed them for an average of more than 10 years. During that time, 580 people had total knee replacements and about 500 had total hip replacements. Having ring and index fingers that were closer in length was associated with a higher risk of requiring total knee replacement due to osteoarthritis, according to the study, which was published online March 4 in the journal Rheumatology. The association was stronger with fingers on the right hand. Osteoarthritis, which is related to normal wear and tear of joints, is the most common type of arthritis. The study did not find any evidence of a link ... Read more

Related support groups: Osteoarthritis, Knee Joint Replacement

Hormone Therapy May Cut Risk of Repeat Joint Replacement Surgery in Women

Posted 23 Jan 2014 by Drugs.com

THURSDAY, Jan. 23, 2014 – Women who start hormone replacement therapy after having had hip or knee replacement surgery may cut their risk of needing another procedure in the same joint by nearly 40 percent, a new study suggests. About 2 percent of those who have a hip or knee replacement need another surgery within three years. Most of these additional procedures are needed because of a complication known as osteolysis, which happens when tiny pieces of the implant seep into the tissue around the implant, causing inflammation that destroys the bone around the implant, the British researchers explained. "There is evidence that drugs like hormone replacement therapy, used usually to prevent osteoporosis and fractures, might have a beneficial effect on implant survival in patients undergoing knee or hip replacement," said lead researcher Dr. Nigel Arden, director of musculoskeletal ... Read more

Related support groups: Knee Joint Replacement, Hip Replacement

Death Rate After Hip, Knee Replacements Has Dropped Sharply: Study

Posted 10 Jan 2014 by Drugs.com

THURSDAY, Jan. 9, 2014 – The risk of death from hip- or knee-replacement surgery has dropped substantially in recent years, a large new study finds. Dutch researchers found that since the early 1990s, death rates have fallen by almost two-thirds among Danish adults having the procedures. The length of patients' hospital stays also dropped – from more than two weeks, on average, to about one week. The study did not dig into the reasons for the improvements, but it's likely that changes in post-surgical care have had a big impact, said lead researcher Arief Lalmohamed, of the Utrecht Institute of Pharmaceutical Sciences in the Netherlands. Those changes, he said, include new blood-thinning medications that help prevent patients from developing potentially dangerous blood clots after surgery. Clots can, in some cases, lead to a heart attack, stroke or pulmonary embolism (a blood clot in ... Read more

Related support groups: Knee Joint Replacement, Hip Replacement

Obesity Is Driving Surge in Knee Replacements, Study Finds

Posted 12 Nov 2013 by Drugs.com

TUESDAY, Nov. 12 – Rising rates of obesity among people younger than 65 may be the main reason for the rapidly increasing number of knee replacements in the United States, according to a new study. The findings dispel the popular belief that aging baby boomers and weekend warriors are behind the unprecedented rise in knee replacement surgeries, the researchers said. The study authors looked at data from 9,000 knee replacement patients that was gathered by more than 125 orthopedic surgeons from 22 states. The analysis revealed that 55 percent of patients younger than 65 were obese, compared with 43 percent of those who were 65 or older. Compared with those 65 and older, twice as many of the patients younger than 65 were severely obese (5 percent versus 11 percent, respectively). The younger group of patients also had higher rates of smoking and lower mental health scores, the ... Read more

Related support groups: Obesity, Knee Joint Replacement

Joint Replacement May Reinvigorate Sex Life

Posted 19 Mar 2013 by Drugs.com

TUESDAY, March 19 – Although most people get a total hip or knee replacement to decrease pain and move around more easily, a team of orthopedic surgeons has discovered an unexpected benefit: people enjoy sex more after surgery. A new study found that total hip or total knee replacement surgery improved self-reported sexual function in 90 percent of patients. Study author Dr. Jose Rodriguez, director of the Center for Joint Preservation and Reconstruction at Lenox Hill Hospital in New York City, created a survey to learn more about how sexual experience was affected by getting a new joint. He said he thought that if he brought up the topic by asking questions about sexuality, people would respond. And they did. "Most patients won't bring up the topic on their own," he said. Rodriguez said that many patients fear they'll damage the new joint if they have sex, but don't ask any questions ... Read more

Related support groups: Knee Joint Replacement, Hip Replacement

Diabetes Doesn't Seem to Raise Risks After Knee Replacement

Posted 27 Feb 2013 by Drugs.com

WEDNESDAY, Feb. 27 – People with diabetes who undergo knee replacement surgery are not at greater risk for infection, deep vein thrombosis (a type of blood clot), or other complications following the procedure than people without diabetes, new study findings indicate. "This current study suggests that patients with diabetes who have higher glucose [blood sugar] levels may not be at greater risk of poor surgical outcomes," explained study author Annette Adams, of the Kaiser Permanente Southern California Department of Research and Evaluation. "There appear to be other factors at play, and patients and their providers need to consider multiple factors, including but not limited to diabetes status, as they make decisions about whether to have this surgery," she added in a news release from the American Academy of Orthopaedic Surgeons. For the study, the researchers examined the records of ... Read more

Related support groups: Diabetes, Type 2, Knee Joint Replacement, Deep Vein Thrombosis Prophylaxis after Knee Replacement Surgery

Weight Gain a Risk After Knee Replacement, Study Finds

Posted 17 Jan 2013 by Drugs.com

THURSDAY, Jan. 17 – People who have knee-replacement surgery are at increased risk for weight gain, according to a new study. Researchers examined the medical records of nearly 1,000 knee replacement patients and found that almost one-third of them gained 5 percent or more of their body weight in the five years after surgery. Among people who didn't undergo knee replacement, 20 percent gained the same amount of weight over that time, according to the study, which was published online recently in the journal Arthritis Care & Research. "Part of the explanation is that people may have spent years adapting to their circumstances by avoiding activities that could cause knee pain," lead author Daniel Riddle, a professor in the physical therapy department at Virginia Commonwealth University, said in a university news release. "We need to encourage patients to take advantage of their ability ... Read more

Related support groups: Knee Joint Replacement

Income May Influence Outcome of Knee Replacement Surgery: Study

Posted 12 Nov 2012 by Drugs.com

SUNDAY, Nov. 11 – People who earn $35,000 or less a year may have better outcomes after knee replacement surgery than those who make more money, U.S. researchers say. The study finding is based on data from patients who had knee replacements at the Mayo Clinic over the past few decades. The researchers found that lower-income patients reported less pain and better knee function at their two-year checkups than higher-income patients. The finding "runs counter to what many might have expected to see. We need to work to understand it further," study author Dr. David Lewallen, an orthopedic surgeon at the Mayo Clinic in Rochester, Minn., said in a Mayo news release. However, this finding can begin to help doctors figure out why some patients do better than others after knee surgery, Lewallen explained. One possible explanation is that many lower-income patients delay the surgery as long as ... Read more

Related support groups: Knee Joint Replacement

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