News Updates
Vitamin D boosts chances of walking after hip fracture
Source: EurekAlert
Senior citizens who are not vitamin D deficient have a better chance of walking after hip fracture surgery, according to a Rutgers-led study.
Waiting for or Recovering from Joint Replacement Surgery During the Time of COVID-19
Source: AAHKS
During this time of the Coronavirus (COVID-19) pandemic, many elective surgeries, such as hip and knee replacements, are being postponed. Whether you are waiting to have an elective hip or knee replacement, or you have just had surgery and are recovering at home, there are ways to improve the health of your joints on your own.
Bursitis of the Hip
Source: familydoctor.org
Bursitis is the painful swelling of bursae. Bursae are fluid-filled sacs that cushion your tendons, ligaments, and muscles. When they work normally, bursae help the tendons, ligaments, and muscles glide smoothly over bone. But when the bursae are swollen, the area around them becomes very tender and painful. Trochanteric bursitis is swelling affecting the bursae of the hip.
Outcomes better at one year with physical therapy for knee OA
Source: Medical Xpress
For patients with osteoarthritis of the knee, those undergoing physical therapy have less pain and functional disability at one year compared with those who receive an intraarticular glucocorticoid injection, according to a study published in the April 9 issue of the New England Journal of Medicine.
For People With Diabetes, the Pain of Knee Osteoarthritis Is Worse
Source: Everyday Health
New research shows that people with diabetes and knee osteoarthritis (KOA) are more likely to experience more pain as a result of their condition compared with people with diabetes alone. The study, published in February 2020 in Arthritis Care & Research, found that the increased pain was present even after controlling for obesity status, sex, and the severity of the disease according to imaging tests.
Chondromalacia Patellae Symptoms and Treatment
Source: Verywell Health
Chondromalacia patellae is a term used to describe the damage or softening of the cartilage on the underside of the kneecap. It is similar to patellofemoral pain syndrome (runner's knee) in which the pain is felt under and around the kneecap. This condition is common among young athletics but may also occur in older adults who have arthritis of the knee.
Kneecap Dislocation
Source: Verywell Health
A dislocation of the kneecap occurs when the patella comes completely out of its groove on the end of the thigh bone (femur), and comes to rest on the outside of the knee joint. Kneecap dislocations usually occur as a significant injury the first time the injury occurs, but the kneecap may dislocate much more easily thereafter.
Osteoporosis: Researchers find another possible risk factor
Source: Medical News Today
Osteoporosis affects millions of people around the world, and it is not possible to change some of the primary risk factors, such as aging. However, more and more environmental risk factors are coming to light, and air pollution appears to be one of them.
Hip Fracture Dangers and Mortality Rates
Source: Verywell Health
A broken bone may not sound serious, but if you are an older man or woman, a hip fracture can be the start of many severe health problems. How dangerous is a broken hip in an older person, and what is the mortality rate after a hip fracture?
Treatment and Recovery Time for MCL Tears
Source: Verywell Health
The medial collateral ligament (MCL) on the inner side of the knee is most often torn when there is a force that strikes the outside of the knee. The MCL attempts to resist widening of the joint and tears if the force is too great. When this happens, you face a recovery time of weeks to months, depending on the grade of the MCL tear.
Helpful or harmful? Weighing last resorts before knee surgery
Source: Harvard Health Publishing
You've tried nearly everything for your worn-out knee. But the remaining possibilities may include some risky options.
Study suggests surgery better than observation for older patients with meniscus tear
Source: Medical Xpress
Patients over age 50 who underwent an all inside arthroscopic repair technique had lower rates of subsequent total knee surgery than a similar group that was only observed, according to research presented at the American Orthopedic Society of Sports Medicine Annual Meeting today.
Link found between gut bacteria, successful joint replacement
Source: Medical Xpress
Having healthy gut flora—the trillions of bacteria housed in our intestines—could lower the risk of infection following knee and hip replacement surgeries, while an unhealthy intestinal flora may increase the risk of infection.
12 Common Hip Pain and Injuries in Athletes
Source: Verywell Health
In the past, just about any hip pain symptom was attributed to a "muscle strain" type of injury. While this is a common cause of hip pain in athletes, we are learning more and more about other causes of hip pain that can sideline a player from the action.
Study dispels myth of exercise damage in the treatment of osteoarthritis of the knee
Source: Medical Xpress
A study by scientists has discovered that therapeutic exercise does not harm articular cartilage of the knee in people with osteoarthritis, a leading cause of disability worldwide associated with pain, impaired mobility and quality of life. It may, in fact, benefit articular cartilage.
AI model based on deep learning detects ACL tears on knee MRI
Source: Medical Xpress
An artifical intelligence system based on deep learning is feasible for detecting full-thickness anterior cruciate ligament (ACL) tears within the knee joint on magnetic resonance (MR) images, according to a study published online May 8 in Radiology: Artificial Intelligence.
Stretches for tight hips: Tips and how to do them
Source: Medical News Today
Targeted exercises and stretches can alleviate tight hips, a problem that occurs when tension builds up in the hip flexors and other muscles around the hips.
What causes lower back and hip pain?
Source: Medical News Today
When pain in the lower back occurs alongside hip pain, there may be a common cause. Certain health conditions or injuries can affect the nerves in both of these areas.
Best Exercises for Hip Bursitis
Source: US News
Within the hip are a variety of muscles, tendons and bones that all work together to keep us moving forward and backward, up and down and side to side. But occasionally, all that intricate machinery can get a little messed up – whether through overuse, age or injury – and bursitis, a common and painful condition, may develop.
Got knee pain? What you need to know about alternatives to surgery
Source: Medical Xpress
Arthritis in the knees can strike people as young as 45, with symptoms severe enough to limit activities and harm quality of life. What can be done about it?
New device sheds light on mechanism, efficacy of arthritis treatment
Source: Medical Xpress
The debate over how one of the most popular osteoarthritis treatments should be federally regulated could change, thanks to a Cornell University study and a new device that provides a better understanding of the science behind hyaluronic acid (HA) injections.
Rheumatoid Arthritis in the Hips: What to Know
Source: Healthline
RA can affect different parts of the body, including the joints in the hands, feet, knees, and shoulders. It can also affect the joints in the hips, causing severe discomfort and stiffness.
Knee pain not associated with daily walking levels in people with knee osteoarthritis
Source: News Medical
The results suggest that alleviating pain is not likely to increase physical activity levels in people with knee osteoarthritis. Although managing pain is an important goal, strategies to increase physical activity should focus on overcoming potentially more crucial barriers, such as lack of knowledge, motivation, and overall sedentary lifestyle.
What to know about MCL tears
Source: Medical News Today
A tear to the medial collateral ligament in the knee can cause pain, swelling, and a lack of stability in the knee. Treatment is usually with ice, a knee brace, and physical therapy. Surgery may be necessary in rare cases.
Early treatment of chronic hip pain in young athletes may have long term impact on health
Source: Hss
Adolescent hip pain often strikes young athletes with structural abnormalities sooner than their less active counterparts, due to the stress their level of activity places on the hip,” said Ernest L. Sink, M.D., co-director of the Center for Hip Preservation at Hospital for Special Surgery in New York City. Dr. Sink is also a member of the HSS Pediatric Orthopedic Service. His practice focuses on hip disorders and dysplasia in infants, children, adolescents and young adults.
What to expect from knee surgery rehabilitation
Source: MedicalNewsToday
A person may have knee surgery to treat pain in the joint due to an injury, such as torn cartilage or a torn ligament. It can also treat other conditions, such as osteoarthritis, rheumatoid arthritis, and post-traumatic arthritis.
Improved quadricep strength linked to better function in women with OA
Source: Healio
Quadriceps weakness is associated with functional limitations and is a target in the treatment of knee osteoarthritis (OA),” Kathryn L. Bacon, PhD, of Boston University, and colleagues wrote. “However, there are limited longitudinal data on the effect of modest increases in strength on improvements in physical function, particularly in individuals with OA.
Hip Replacement Surgery Dos and Don'ts
Source: Aplaceformom
It is common to be discharged home or to a rehabilitation facility within two to four days after your hip replacement. Dr. William J. Hozack, an orthopedic surgeon at the Sidney Kimmel Medical College at Thomas Jefferson University, who was quoted in an article in the New York Times, stated that patients tended to be happier when they are able to recover in their own homes. Being at home also reduces your chance of blood clots, falls and infections.
Study: Eating Mediterranean-type diet could reduce bone loss in osteoporosis patients
Source: News Medical Life Sciences
Eating a Mediterranean-type diet could reduce bone loss in people with osteoporosis - according to new research from the University of East Anglia.
Prolonged Opioid Use Before Knee or Hip Replacement Surgery Increases Risk of Poor Outcomes
Source: Wolters Kluwer
Patients who take prescription opioids for more than 60 days before total knee or hip replacement surgery are at significantly higher risk of being readmitted to the hospital and of undergoing repeat joint-replacement surgery.
Reproductive, hormonal factors tied to knee OA in women
Source: Medical Xpress
Female reproductive and hormonal factors are associated with incidence of knee osteoarthritis (OA), according to a study published in the July issue of Arthritis & Rheumatology.
When hip and knee both need to be replaced, hip surgery usually done first
Source:: Chicago Tribune
I need a total hip replacement and a total knee replacement -- both on my left side. Does it matter which procedure is done first? How soon after one procedure can I have the other procedure done
Depressive symptoms associated with disease severity in patients with knee osteoarthritis
Source: Eurek Alert
The results of a study presented today at the Annual European Congress of Rheumatology (EULAR 2018) demonstrate that among individuals with radiographic knee osteoarthritis (OA), decreased physical performance and greater structural disease severity are associated with a higher risk of experiencing depressive symptoms.
Study launched to see if weight loss surgery before knee replacement improves outcomes
Source: HSS
Could weight loss surgery before knee replacement improve outcomes or even eliminate the need for joint replacement in severely overweight patients? A study by researchers at Hospital for Special Surgery (HSS) aims to answer that question. Orthopedic surgeons often encourage obese patients considering knee replacement to try to lose weight before the procedure.
Improving outcomes for serious knee injuries
Source: Medical Xpress
Anterior cruciate ligament (ACL) tears are one of the most common knee injuries in the United States, affecting more than a quarter of a million people annually, many of them athletes.
New surgery for groin pain found to be more effective than physiotherapy
Source: Warwick
Femoroacetabular impingement syndrome, is a cause of hip pain in young adults, often mistaken for groin strain, and is probably the commonest cause of groin pain in footballers
Regional anesthesia tied to lower opioid use in TKA, THA
Source: Medical Xpress
The researchers found that for knee surgery, regional anesthesia was associated with reduced opioid consumption (P < 0.001) and less pain (P=0.001) than general anesthesia, after adjustments for confounders.
Imaging identifies cartilage regeneration in long-distance runners
Source: RSNA News
Using a mobile MRI truck, researchers followed runners for 4,500 kilometers through Europe to study the physical limits and adaptation of athletes over a 64-day period, according to a study presented today at the annual meeting of the Radiological Society of North America (RSNA).
Take intraoperative steps to reduce joint infection risk
Source: Healio
With an increasing number of total knee arthroplasty and total hip arthroplasty procedures being performed in the United States, the rate of failure has also increased. In its annual report, the American Joint Replacement Registry listed infection as a leading cause of TKA and THA revisions from 2012 to 2016.
What is a hyperextended knee?
Source: Medical News Today
Knee pain and injuries are widespread, particularly in very active people and athletes. A hyperextended knee is a type of injury to the knee caused by the knee bending too far backward. This painful injury is often easy for a doctor to spot and treat.
Doctors use new procedure in patients with damaged hips to avoid replacement surgery
Source: News-Medical.net
Doctors at The Ohio State University Wexner Medical Center are using a procedure called Subchondroplasty to give patients with damaged hips more treatment options and ultimately avoid replacement surgery.
Hip dysplasia: When is surgery required?
Source: Medical Xpress
Hip dysplasia is a condition in which the top portion of the thigh bone doesn't fit properly in the socket portion of the hip joint - either because it is out of place or it is not the correct shape. In many cases, this condition is present at birth. Some people may not be diagnosed during childhood, however, and only when symptoms appear later is the problem identified. Although some adults with hip dysplasia need surgery to correct the problem, total hip replacement isn't always necessary.
Improvements in ACL surgery may help prevent knee osteoarthritis
Source: Medical Xpress
Injury to the anterior cruciate ligament (ACL) in the knee frequently leads to early-onset osteoarthritis, a painful condition that can occur even if the patient has undergone ACL reconstruction to prevent its onset. A new review looks at the ability of two different reconstruction techniques to restore normal knee motion and potentially slow degenerative changes.
Undergoing hip replacement improves five-year quality of life
Source: Science Daily
Patients undergoing total hip replacement experience meaningful and lasting improvements in quality of life (QOL) through at least five years after the procedure, reports a new study.
Researchers found better cup, stem survival after early THA
Source: Healio
Patients who underwent early total hip arthroplasty experienced better 10-year cup and stem survival compared with patients who underwent late total hip arthroplasty, according to study results.
Researchers searched the Medline databases from January 1990 to January 2014 and retrieved 19 articles reporting on the management of posttraumatic arthritis of the hip following acetabular fractures with the use of late total hip arthroplasty (THA), as well as articles where acetabular fractures were treated with early THA. In all, the researchers assessed THA outcomes following acetabular fracture in 654 patients.
Most dislocated hips placed within ‘safe zone’ during THA, study finds
Source: Healio
DALLAS — During their minimum 2-year follow-up, researchers here reported a 1.9% rate of subsequent dislocation after total hip arthroplasty in a contemporary practice and noted 58% of these cases had an acetabular socket position within the Lewinnek safe zone.
“Most contemporary total hip arthroplasties that dislocate are within the Lewinnek safe zone,” Matthew P. Abdel, MD, said during his presentation at the American Association of Hip and Knee Surgeons Annual Meeting. “Cup position for some patients certainly lies outside this safe zone. Most importantly, new technologies will need better targets to hit prior to them being clinically relevant or economically feasible.”
Preterm, low birth-weight babies may need new hips in adulthood
Source: Science Daily
Researchers from Australia report that low birth weight and preterm birth are linked to increased risk for osteoarthritis (OA)-related hip replacements in adulthood. The findings also indicate that low birth weight and pre-term babies were not at greater risk of knee arthroplasty due to OA as adults.
Pacira Pharmaceuticals Inc. announces new data on the use of EXPAREL to treat postsurgical pain following total knee arthroplasty
Source: Medical News Today
Pacira Pharmaceuticals, Inc. has announced results of an independent, physician-initiated study designed to evaluate the difference in postsurgical pain and opioid consumption between patients who received EXPAREL versus a multi-drug analgesic cocktail for pain management following total knee arthroplasty (TKA). The data, presented at the annual meeting of the American Association of Hip and Knee Surgeons (AAHKS), found that patients treated with EXPAREL reported significantly lower patient-perceived pain scores and morphine sulfate equivalence consumption, and reported higher satisfaction with pain control and overall experience, compared with patients who received the multi-drug analgesic cocktail.
Acoustic technique developed to detect knee osteoarthritis
Source: Medical News Today
A revolutionary medical technique using sound waves to identify osteoarthritis in the knee has been developed by researchers.
The UK is leading this new field of health research based on listening to the sounds emitted by the body.
Microphones are attached to the knees of patients, and the high frequency sound waves emanating from their knees are measured as they stand up. These acoustic emissions are interpreted by computer software to give information about the health of the patient’s knee.
Prehabilitation Could Help Knee and Hip Replacement Patients Recover
Source: Daily Rx
With the number of total knee and hip replacements on the rise, doctors are looking for ways to reduce the amount of care needed after surgery. Prehabilitation (physical therapy before surgery) could help patients recover faster and save money.
Rehabilitation following knee or hip replacement is the standard of care. The physical therapy is designed to help patients adjust to new joints and strengthen muscles.
A new study found that physical therapy before the joint replacement surgeries reduced the need for rehab after the surgery.
Exercise, Physical Therapy May Help Ease Pain of Arthritis
Source: Health Day
Regular exercise and physical therapy may benefit people with hip and knee arthritis, new research suggests.
The study included 206 people with hip and knee osteoarthritis, average age 66, who were divided into two groups. One group received usual care, while the other group had regular exercise, physical therapy or both added to their standard care.
Embracing the brace
Source: Daily Rx
Knees are only meant to bend forward and backward. If a knee pops and locks up with major pain, something serious is going on there, and it’s most likely an ACL injury.
The injuries often need surgery to reconstruct the ligament, followed by therapy to help rehabilitate the knee.
It does not lower pain, protect from reinjuring the knee or improve the stability of the knee. Rather, braces add an unnecessary expense to the recovery. Vitamins and other supplements also don’t help in the healing process.
Beginning physical therapy shortly after surgery, ideally within a few days after, can bring great outcomes for patients.
Does rehab help before joint replacement?
Source: Daily Rx
Before going through knee replacement surgery, patients often do some rehab for their aching joint. That is, they try to improve pain and function before surgery. But does this pre-surgery rehab improve outcomes?
According to recent research, pre-surgery rehabilitation seemed to do little to improve pain, function and motion after knee replacement surgery.
More magnesium, less arthritis
Source: Daily Rx
What you put in your body can affect your risk of disease, even your risk of osteoarthritis. If you’re trying to prevent this “wear-and-tear” type of arthritis, you may want to eat more almonds and spinach.
Eating more magnesium – a mineral found in many green vegetables, beans and nuts – it may lower the risk of knee osteoarthritis.
Most damage, most gain in knee replacement
Source: Daily Rx
If you have knee osteoarthritis, you can take steps to prevent permanent damage. For those with the damage done, joint replacement surgery may relieve pain and boost knee function.
Osteoarthritis patients with the most joint damage before surgery may be the most likely to benefit from total knee replacement.
MRI may spot arthritis unseen by X-ray
Source: Daily Rx
Osteoarthritis happens when joints and joint tissues wear down over time. Usually, doctors use X-ray imaging to see this joint damage. But another imaging technique may give doctors a better picture.
Magnetic resonance imaging (MRI) spotted many signs of knee osteoarthritis in patients that had no signs of knee osteoarthritis in X-ray images.
Cartilage made from stem cells
Source: Medical Breakthroughs
Using pluripotent stem cells, a team of Duke Medicine researchers has engineered cartilage. The findings suggest that induced pluripotent stem cells (iPSCs) may be a viable source of patient-specific articular cartilage tissue.
ORIF prevented need for later THA in acetabular fracture patients
Source: Healio.com
Long-term follow-up showed that open reduction and internal fixation successfully treated displaced acetabular fractures in patients without the need for subsequent total hip arthroplasty, according to this study.
Study confirms socioeconomic value of hip protectors, joint arthroplasty
Source: Healio.com
Researchers in a recent issue of Orthopedic Research and Review have concluded that medical devices, such as hip protectors and total joint arthroplasty implants, are cost-effective and significantly improve patients’ lives, confirming their socioeconomic value.
“Orthopedic devices such as knee and hip implants or hip protectors have the potential to improve people’s lives. They allow for greater flexibility, faster return to an active, independent lifestyle and reduced risk of future fractures to name but a few benefits,” Yves Verboven, executive director at the European Health Technology Institute for Socio-Economic Research (EHTI), stated in a press release.
Quit the bottle to build happy bones
Source: Daily Rx
Avoiding alcohol combined with regular exercise can help men build the bones lost from alcoholism, a new study has found.
The amount of osteocalcin, which is a protein in the bones and teeth, increased over the eight-week period as men continued to avoid alcohol.
This means that there was a “higher rate of bone formation during continuous abstinence,” the authors said in their study.
Global efforts necessary to prevent fragility fractures due to osteoporosis
Source: Medical News Today
The International Osteoporosis Foundation (IOF) has released a new report, revealing approximately 80 percent of patients treated in clinics or hospitals following a fracture are not screened for osteoporosis or risk of future falls. Left untreated, these patients are at high risk of suffering secondary fractures and facing a future of pain, disfigurement, long-term disability and even early death.
The report ‘Capture the Fracture – A global campaign to break the fragility fracture cycle’ calls for concerted worldwide efforts to stop secondary fractures due to osteoporosis by implementing proven models of care.
New hip replacement technique offers faster recovery with less pain
Source: Medical News Today
A new hip replacement strategy, an anterior approach technique, allows the patient to experience less pain, have a quicker recovery, and improved mobility.
The majority of hip replacement surgeries are done using other techniques because many hospitals do not yet offer the anterior approach. However, people are becoming increasingly aware of its benefits. Within the next 5 to 10 years, Dr. Rees believes that it will become the primary technique.
Marco lecture proves robotic knee replacement surgery has leg up on traditional methods
Source — Marco News.com
Buechel, an orthopedic surgeon at Physicians Regional Healthcare System, is on the cutting edge of robotic joint replacement, having performed 439 robotic knee surgeries or about 5 percent of all such surgeries worldwide. He also teaches other doctors the technique.
Errors occur with traditional partial knee replacements, Buechel said, because doctors are not as likely to place implants into the knee joint with complete accuracy. The robotic system pinpoints alignments to within one millimeter and one degree, he asserted.
New company enters market to use vitamin E to extend life of hip, knee implants
Source — Marco News.com
Vitamin E isn’t an antioxidant just for your skin and nails anymore — it’s expanding to joint implants.
Zimmer, a company also based in Warsaw, is seeking FDA approval to offer its own version.
The concept is that the natural antioxidant in vitamin E can prevent wear of the polyethylene, or plastic, components of implants. Many cup liner components for hip implants are made of the plastic and the same goes for plastic knee bearings in knee replacements.
The vitamin is blended in during the manufacturing process and makes the material denser to better handle stress, said Tim Gardener, product director for hip products with Zimmer.
Can surgery help you stay in the game?
Source — Boston.com
Demand for knee and hip replacement rises–
Arthritic knee crimping your tennis game? Toss it out and get a new one.
Demand for joint replacement surgery, once confined largely to patients well past retirement age, has been growing rapidly among a class of people doctors have dubbed the “young actives’’ – those in the 45 to 64 age group who are determined to stay fit.
Still, even with the rise of obesity and longer lives, public health researchers say the rate of joint replacement failures requiring revisions is about 1 percent a year, mostly in the relatively younger patients who “outlive’’ the 10-to-20-year working life spans of their replacement joints. And as technique and technology have improved, the rates of infection, dislocations, and other complications have declined.
But she added a note of caution. “What we could expect to see in the future is the people in the 45-to-64-year-old category coming back to get revisions’’ – new knee replacements in second surgeries. With any luck, the second implants could be better.
Untreated varicose veins put patients at greater DVT risk following THA
Source — Healio
As the search continues for methods to reduce deep vein thrombosis and pulmonary embolism risk in patients undergoing total joint arthroplasty, researchers have found increased rates of deep vein thrombosis within 90 days of undergoing total hip arthroplasty among patients with untreated varicose veins.
“Overall patients should consider having their varicose veins treated prior to undergoing total hip arthroplasty (THA) in an attempt to reduce DVT [deep vein thrombosis],” Anahita Dua, MD, of Brookfield, Wisc., said at the American Academy of Orthopaedic Surgeons 2012 Annual Meeting, here.
Hip resurfacing: The metal-on-metal bearing material is not the problem
Source — Healio
MoM hip resurfacing is not a new technology any more, and the devices that have been approved by the FDA after sufficient clinical trials have been available for more than a decade. It is important to avoid making statements about a procedure based on the poor results of subsequent designs which were still in their experimental (non-FDA approved) phase.
Many have written off MoM HRA, and this is unfortunate because superb results have been achieved with several devices in several centers for the young and active patient. The MoM bearing, unlike polyethylene of first generation devices, is not the problem. It is a treatment option for arthritis that is worth pursuing and improving. It just makes sense to save the head and neck, and adhere to a fundamental tenet of orthopedics espoused by our forebears — save bone.
It is my fervent desire to improve surgeon and patient education and emphasize that there are techniques to solve the problems associated with MoM hip resurfacing. Charles Kettering said, “The world hates change, yet it is the only thing that has brought progress.”
ACR approves standardized measures to determine RA disease activity
Source — Healio
A working group organized by the American College of Rheumatology has analyzed more than 60 disease activity measures for rheumatoid arthritis and recommended six measures that can be applied in clinical practice, according to a press release. The analysis by the Rheumatoid Arthritis (RA) Clinical Disease Activity Measures Working Group apppear in Arthritis Care & Research.
Hip dysplasia can be reliably diagnosed by ultrasound at 6 months
Source — Medical News Today
Developmental dislocation (dysplasia) of the hip (DDH) is a common congenital condition in which a child’s upper thighbone is dislocated from the hip socket. The condition can be present at birth or develop during a child’s first year of life. Plain radiography (X-rays) has long been the gold standard screening modality for this condition in 6-month-old children, despite concerns over exposing very young children to ionizing radiation.
Ultrasound provided good quality images with 100 percent diagnostic correlation to the X-rays in all patients. Ultrasound is a reliable alternative imaging method to X-rays for DDH screening in 5-to-7 month old children.
Synovial fluid tests with leukocyte esterase strips improved periprosthetic joint infection detection
Source — Orthosupersite
A prospective cohort study showed that leukocyte esterase reagent strips can play an important role in the rapid diagnosis of periprosthetic joint infection when following patients after total joint arthroplasty.
“LE [leukocyte esterase] is a very accurate test for diagnosing PJI [periprosthetic joint infection],” Parvizi said at the American Academy of Orthopaedic Surgeons 2012 Annual Meeting, here.
LE at 2-plus had 100% positive predictive value and 100% specificity. I am not aware of a single test in our armamentarium today that carries the same specificity and positive predictive value,” he said, noting the strips, which are commercially available, cost about 25 cents each and can detect PJI in about 1 minute.
Knee replacement may lower a patient’s risk for mortality and heart failure
Source — e! Science News
New research presented at the 2012 Annual Meeting of the American Academy of Orthopaedic Surgeons (AAOS) highlights the benefits of total knee replacement (TKR) in elderly patients with osteoarthritis, including a lower probability of heart failure and mortality.
There were significant positives in the osteoarthritis TKR group: the risk of mortality was half that of the non-TKR group and the congestive heart failure rate also was lower, at three, five and seven years after surgery. There was no difference in diabetes rates among both groups. Depression rates were slightly higher in the TKR group during the first three years after surgery, though there was no difference at five and seven years.
Early study suggests nanodiamonds safe for implants
Source —Sciencedaily
In the race to create longer-lasting and less-painful artificial joints, University of Alabama at Birmingham researchers are exploring whether nanodiamond coatings can reduce wear on joints made of metal alloys. The work is important because, according to the American Academy of Orthopedic Surgeons, more than 418,000 knee replacements and 328,000 hip replacements are performed in the United States each year; the numbers are expected to balloon as the nation’s population ages.
Joint wear generates debris that can cause pain, limit mobility and hasten joint failure. Debris particles from metal surfaces are absorbed by scavenging immune cells called macrophages, which then secrete chemicals that cause swelling and pain. This inflammation turns on bone-eating cells near implants, and bone-loss increases the likelihood implants will break loose and require a second surgery.
