Knee Replacement News and Research

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HHS scientists to share recent rheumatology findings at 75th ACR annual meeting

Hospital for Special Surgery physician-scientists who focus on arthritis, lupus, vasculitis and related conditions are traveling from New York City to Chicago this week to share their recent findings at the 75th Annual Scientific Meeting of the American College of Rheumatology.

7 Nov 2011

Doctors may stop anti-TNF medications for RA patients before surgery to reduce disease flares

As guidelines recommend, doctors appear to be stopping anti-TNF medications before surgery, but may be doing so far sooner than is necessary, according to a new study by researchers at Hospital for Special Surgery. These medications are used to treat a variety of inflammatory diseases, including rheumatoid arthritis, and better timing of withdrawal prior to surgery might minimize the risk of disease flares.

6 Nov 2011

Patients with RA have lower expectations about postsurgical outcomes after TKA

Compared with osteoarthritis patients, individuals with rheumatoid arthritis who undergo total knee replacement surgery have lower expectations about their postsurgical outcomes, according to a new study by researchers at Hospital for Special Surgery (HSS) in New York City.

6 Nov 2011

Women and men ages 45 to 64 more likely to be hospitalized for knee replacement surgery

Women and men ages 45 to 64 were 2.5 times more likely to be hospitalized for knee replacement surgery in 2009 than in 1997, according to the latest News and Numbers from the Agency for Healthcare Research and Quality.

4 Nov 2011

Free computer application accurately models human motion

There are 640 muscles in the human body, or maybe it is 639. Or maybe it is 850. Or 656. It all depends on whom you ask. In any case, it is a lot. Stanford bioengineer Scott Delp knows; he has programmed almost every one into his latest work, OpenSim, a software application that helps medical professionals and bioengineers study, diagnose and correct abnormalities in how people move.

29 Oct 2011

New prosthetic design may not offer same benefits for all knee replacement recipients

Undergoing a knee replacement involves sophisticated medical equipment, but innovative prosthetic design may not offer the same benefits for all knee replacement recipients, Yale School of Medicine researchers report in a perspective article in the October 20 issue of New England Journal of Medicine.

20 Oct 2011

Vejthani Hospital brings Digital Lightbox to help surgeon plan the surgery pre-operatively

Vejthani Hospital Bangkok brought intelligent medical equipment in Orthopedic Knee Surgery, the so called "Digital lightbox", this can be used to enhance the capability of the Image Guided surgery (Computer Assisted Navigation System) for total joint replacement surgery.

1 Oct 2011

New AAOS guideline recommends how to reduce DVT, PE after joint replacement surgery

An updated clinical practice guideline released last week by the American Academy of Orthopaedic Surgeons (AAOS) Board of Directors recommends how to reduce the likelihood of blood clots after hip or knee replacement surgery, procedures that more than 800,000 Americans undergo each year. The new guideline suggests use of preventive treatments and advises against routinely screening patients after surgery using ultrasound imaging.

1 Oct 2011

Gamma radiation could toughen up plastic prosthetic joints

A blast of gamma radiation could toughen up plastic prosthetic joints to make them strong enough to last for years, according to researchers in China writing in the current issue of the International Journal of Biomedical Engineering and Technology.

23 Sep 2011

Research roundup: Personalized info helps consumer decision-making; Racial disparities in knee replacement

Comparison Friction: Experimental Evidence From Medicare Drug Plans – Defining comparison friction as "the wedge between the availability of comparative information and consumers' use of it," the authors determined that providing prescription drug pricing information, even though it was free and accessible in other ways, increased the amount of "plan-switching" in the group to 28 percent compared to 17 percent in another that did not get the individual information.

17 Sep 2011

African American patients more likely to receive replacement surgery in low-quality hospitals

Racial minorities have reduced access to high-quality joint replacement care, according to Dr. Xueya Cai and colleagues from the University of Iowa in the US. Their work, published online in Springer's journal Clinical Orthopaedics and Related Research, shows that African American patients are more likely than Caucasians to receive total knee arthroplasty (or replacement surgery) in low-quality hospitals.

14 Sep 2011

Cardiovascular and Renal Drugs Advisory Committee recommends FDA approval of J&JPRD's rivaroxaban

Johnson & Johnson Pharmaceutical Research and Development, L.L.C. (J&JPRD) announced today that the U.S. Food and Drug Administration's (FDA) Cardiovascular and Renal Drugs Advisory Committee recommended approval of rivaroxaban, a novel, once-daily, oral anticoagulant, for the prevention of stroke and systemic embolism in patients with non-valvular atrial fibrillation.

9 Sep 2011

ELIQUIS better than warfarin in reduction of stroke, major bleeding, and mortality

Bristol-Myers Squibb Company and Pfizer Inc. today announced the main results of the Phase 3 clinical trial ARISTOTLE, which evaluated ELIQUIS compared to warfarin for the prevention of stroke or systemic embolism in 18,201 patients with atrial fibrillation and at least one risk factor for stroke.

29 Aug 2011

OrthoSensor, Stryker partner for intelligent knee surgical trial

Stryker Corporation's Orthopaedics Division and OrthoSensor, Inc., the leader in intelligent orthopaedics, today announced an agreement in which OrthoSensor will provide the OrthoSensor Knee Trial, designed for use with Stryker's Triathlon Knee System.

From Stryker 18 Aug 2011

Pre-operative education programme can reduce hospital stay for knee replacement patients

Potential to reduce NHS costs while offering more effective rehabilitation for knee replacement patients has been identified following a 20 month study carried out by academics at Northumbria University in conjunction with Gateshead Health NHS Foundation Trust.

10 Aug 2011

Exactech's new Optetrak Logic knee implant effective for painful arthritis

Kevin Hindle, a 47-year-old manufacturing engineer at Exactech, Inc., a global orthopaedic device company, regained his active lifestyle with an innovative new knee implant that he helped develop.

9 Aug 2011

Knee osteoarthritis more common in women than men

A Mayo Clinic orthopedic surgeon suspects that the nagging pain and inflammation that women can experience in their knees may be different from what men encounter, and she has been chosen to lead a novel U.S.-Canadian study to explore the question.

4 Aug 2011

Hip and knee replacement surgery linked to increased risk of clot development

When tennis star Serena Williams underwent emergency treatment for a pulmonary embolism earlier this year, the world's attention was drawn to this often fatal medical condition which, although surprisingly not uncommon, is unfamiliar to most men and women.

28 Jul 2011

Patients with pulmonary hypertension more likely to have complications after bilateral TKA

A new study by researchers at Hospital for Special Surgery has identified patients who are at a higher risk of morbidity and mortality when undergoing knee replacement surgery in both legs at the same time.

15 Jul 2011

High BMI and vigorous physical activity increase risk of arthroplasty in men

Surprising results from a new study revealed that men who smoke had less risk of undergoing total joint replacement surgery than those who never smoked.

8 Jul 2011