Prosthetic News and Research

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Prosthetic (Prosthesis) devices, such as an artificial leg, that replace a part of the body. Prostheses are typically used to replace parts lost by injury (traumatic) or missing from birth (congenital) or to supplement defective body parts. Inside the body, artificial heart valves are in common use with artificial hearts and lungs seeing less common use but under active technology development. Other medical devices and aids that can be considered prosthetics include artificial eyes, palatal obturator, gastric bands, and dentures.

Transapical aortic valve implantation

Transapical aortic valve implantation (TA-AVI) is a new therapeutic strategy, which has been implemented successfully into clinical practice in several hundred patients suffering symptomatic aortic stenosis and an increase perioperative risk during the past two years. The Edwards SAPIEN prosthesis has been used.

1 Sep 2008

Best use of drug-eluting stents: When should they be avoided?

Compared with bare metal stents, drug-eluting stents substantially reduce the risk of angiographic and clinical recurrence but do not affect mortality or the short term or long term risk of myocardial infarction.

31 Aug 2008

Scientists view tiny fibers of working muscles in live humans with microendoscopy technique

Using an unusual microscope with a tip the size of a needle, Stanford researchers are now able to look at tiny fibers of working muscles in live humans, with minimum discomfort to the patient-a development patients are sure to welcome.

10 Jul 2008

Bush Administration to temporarily keep Medicare physician payment rates at current levels after congress fails to pass legislation to delay scheduled cut

HHS Secretary Mike Leavitt on Friday said that the agency will maintain the current Medicare payment rate for physicians because Congress was unable to pass legislation to avert a 10.6% cut scheduled to go into effect on Tuesday before lawmakers left for the Fourth of July recess, the Washington Post reports. According to the Post, congressional aides said the freeze to payment rates could last 10 days (Kane, Washington Post, 6/28).

2 Jul 2008

Federal Judge rejects request for injunction against Medicare competitive bidding program for durable medical equipment, editorial says

U.S. District Judge for the District of Columbia Ricardo Urbina on Monday rejected a request for a preliminary injunction against a Medicare competitive bidding program for durable medical equipment, CongressDaily reports (Edney, CongressDaily, 6/30).

2 Jul 2008

New self-powered sensor to monitor progress during knee operations

As news of Tiger Woods' knee injury hits the headlines, a researcher at the University of Southampton has developed a new self-powered sensor to monitor progress during knee operations.

30 Jun 2008

New York Times Editorial, column address provision in Medicare bill to delay DME competitive bidding program

The New York Times on Wednesday published an editorial and column that addressed a provision included in a Medicare bill (HR 6331) passed by the House that would delay for 18 months a competitive bidding program for durable medical equipment.

26 Jun 2008

Senate panel approves $153.1 billion for discretionary spending in labor-HHS-education bill for FY 2009

The Senate Appropriations Labor, HHS, Education and Related Agencies Subcommittee on Tuesday by voice vote approved a $631 billion fiscal year 2009 Labor-HHS-Education appropriations bill, CQ Today reports.

26 Jun 2008

Researchers develop brain-machine interfaces that learn with the brain

Devices known as brain-machine interfaces could someday be used routinely to help paralyzed patients and amputees control prosthetic limbs with just their thoughts. Now, University of Florida researchers have taken the concept a step further, devising a way for computerized devices not only to translate brain signals into movement but also to evolve with the brain as it learns.

24 Jun 2008

New evidence-based blood clot guidelines for pregnant women

New evidence-based guidelines address the prevention and management of thrombosis in key patient populations and reinforce recommendations related to the routine use of preventive therapies.

24 Jun 2008

Wireless vision implant

About 30 million people around the world have grown legally blind due to retinal diseases. The EPI-RET project has sought for a technical solution for the past twelve years to help these patients. This work has resulted in a unique system - afully implantable visual prosthesis.

29 May 2008

CMS announces contract winners in first phase of Medicare durable medical equipment bidding program

CMS on Monday announced that 325 suppliers have won contracts in the first phase of a durable medical equipment competitive bidding program for Medicare scheduled to begin on July 1, CQ HealthBeat reports (Carey, CQ HealthBeat, 5/19).

20 May 2008

Outcomes of obese and nonobese patients undergoing revision total hip arthroplasty

Along with age and injuries, obesity is a leading risk factor for osteoarthritis (OA), a painful and disabling joint disease. While excessive weight can aggravate the toll on almost any joint, obesity has been associated with a higher prevalence of hip OA and an increase in total hip arthroplasty (THA).

8 May 2008

Lawmakers, industry reps, officials discuss Medicare competitive bidding program for durable medical equipment

During a House Ways and Means Health Subcommittee hearing Tuesday, lawmakers, officials and representatives of the durable medical equipment industry discussed a Medicare competitive bidding program, including the application process and possible alternatives to the program, CQ HealthBeat reports (Carey, CQ HealthBeat, 5/6).

7 May 2008

House hearing to address concerns over Medicare durable medical equipment competitive bidding program

The House Ways and Means Health Subcommittee on Tuesday plans to hold a hearing on a Medicare competitive bidding program for durable medical equipment, CQ HealthBeat reports (Carey, CQ HealthBeat, 5/5).

6 May 2008

Pregnant women face hostile behavior when applying for jobs

Pregnant women may still face judgment and obstacles to getting jobs, shows two recent studies by George Mason University and Rice University professors.

6 May 2008

Researchers identify Heme detoxification protein - potential target for developing new malaria drugs

Researchers at the Virginia Bioinformatics Institute (VBI) at Virginia Tech have identified Heme Detoxification Protein (HDP), a unique protein encoded in the malaria genome that represents a potential target for developing new malaria drugs.

24 Apr 2008

Clearer understanding of how neurons give rise to motor behaviors

When the eye tracks a bird's flight across the sky, the visual experience is normally smooth, without interruption. But underlying this behavior is a complex coordination of neurons that has remained mysterious to scientists. Now, UCSF researchers have broken ground in understanding how the brain generates this tracking motion, a finding that offers a window, they say, into how neurons orchestrate all of the body's movements.

24 Apr 2008

Winner of Penn's 2008 PennVention - new prosthetic limb

A new prosthetic accessory worn on the residual limb of a transtibial (below-knee) amputee was awarded the Grand Prize at the Fourth Annual PennVention competition for student inventors at the University of Pennsylvania's Weiss Tech House.

21 Apr 2008

Unusual case of upper obstructive syndrome

Aorto-duodenal fistulae (ADF) are the most frequent aorto-enteric fistulae (80%) and the most frequent presenting sign of ADF is upper gastrointestinal bleeding (UGI).

25 Feb 2008