Forum for Science, Industry and Business

Sponsored by:     3M 
Search our Site:

 

Bone-anchored leg prostheses improve quality of life

13.09.2010
Today sees the presentation of a study that, for the first time, shows the results of treatment using prostheses attached to titanium implants in the bones of patients with above-the-knee amputations.

It reveals that the treatment improves function and quality of life in nine out of ten patients, and is the result of research carried out at the Sahlgrenska Academy and Sahlgrenska University Hospital that is being presented this week at the International Society of Orthopaedic Surgery and Traumatology (SICOT) annual international conference in Gothenburg.

At a symposium today researcher Rickard Brånemark and others will be presenting some aspects of their OPRA study (Osseointegrated Prostheses for the Rehabilitation of Amputees) that began in 1999.

In the study, researchers at the Centre of Orthopaedic Osseointegration (COO) and the orthopaedic clinic at Sahlgrenska University Hospital in Mölndal treated 51 patients who had been amputated above the knee, with a two-year follow-up period. The patients were aged between 20 and 65, with 55% being male.

“The treatment improves both function and quality of life in more than nine out of ten patients,” says Brånemark, a researcher at the Sahlgrenska Academy and orthopaedic surgeon at Sahlgrenska University Hospital. “It’s important to point out that this treatment is intended for younger amputees and is not suitable for patients who have had amputations as a result of vascular disease.”

More than 2,000 leg amputations are carried out each year in Sweden. While most are on elderly patients with diabetes or impaired blood circulation, some are on younger patients. Normally a leg prosthesis is attached to the amputated stump using a socket. The new technique means that the prosthesis can easily be screwed tight to a titanium implant that is anchored to the bone and protrudes from the stump.

“Attaching prostheses directly to the bone with an implant has long been an unattainable vision, and this has been in development for more than 20 years. But we are now seeing the international breakthrough for this revolutionary treatment,” says Brånemark, one of the authors behind the study, who explains that work is now underway on treating other amputations such as fingers and arms.

The studies have been carried as a collaboration between Sahlgrenska University Hospital, the Department of Orthopaedics and Department of Biomaterials at the Sahlgrenska Academy, and the BIOMATCELL VINN Excellence Center of Biomaterials and Cell Therapy at the University of Gothenburg.

OSSEOINTEGRATION
Osseointegration is a way of attaching prostheses directly to the bone, and was developed in the 1960s by professor Per-Ingvar Brånemark. He discovered that titanium is not rejected by the body, but instead fuses with the surrounding bone tissue. It was originally used to replace lost teeth using titanium dental implants, a treatment method that has spread worldwide and improved the quality of life of millions of people. It has since been developed and osseointegration now has many applications, including leg, arm and face prostheses, and is also used to attach hearing aids.
For more information, please contact:
Rickard Brånemark, MD MSc PhD, researcher at the Sahlgrenska Academy and orthopaedic surgeon at Sahlgrenska University Hospital, rickard.branemark@orthop.gu.se mobile: +46(0)70 846 10 61
Title of the study: OPRA, Osseointegrated Prostheses for the Rehabilitation of Amputees
Authors: Rickard Brånemark, Örjan Berlin, Björn Gunterberg, Peter Bergh, Mikael Dalén, Sigvard Eriksson, Sven Inerot, Kerstin Hagberg, Gith Jansson, Eva Häggström, Hanna Berander, Eva-Louice Borg-Pearce, Charles Bragdon, Henrik Malchau, Johan Kärrholm, Björn Rydevik.

Time: OSOS Symposium, Thursday, 2 September, 13:30-15:00 and 16:00-17:45, and Friday, 3 September, 08:00-09:30 and 10:45-12:45

Download the conference programme and additional information from: http://www.sicot.org and/or http://www.ortopediveckan.se

Helena Aaberg | idw
Further information:
http://www.sicot.org
http://www.ortopediveckan.se

Further reports about: Biomaterial Bone-anchored Gothenburg OPRA prostheses quality of life

More articles from Studies and Analyses:

nachricht Real-time feedback helps save energy and water
08.02.2017 | Otto-Friedrich-Universität Bamberg

nachricht The Great Unknown: Risk-Taking Behavior in Adolescents
19.01.2017 | Max-Planck-Institut für Bildungsforschung

All articles from Studies and Analyses >>>

The most recent press releases about innovation >>>

Die letzten 5 Focus-News des innovations-reports im Überblick:

Im Focus: Breakthrough with a chain of gold atoms

In the field of nanoscience, an international team of physicists with participants from Konstanz has achieved a breakthrough in understanding heat transport

In the field of nanoscience, an international team of physicists with participants from Konstanz has achieved a breakthrough in understanding heat transport

Im Focus: DNA repair: a new letter in the cell alphabet

Results reveal how discoveries may be hidden in scientific “blind spots”

Cells need to repair damaged DNA in our genes to prevent the development of cancer and other diseases. Our cells therefore activate and send “repair-proteins”...

Im Focus: Dresdner scientists print tomorrow’s world

The Fraunhofer IWS Dresden and Technische Universität Dresden inaugurated their jointly operated Center for Additive Manufacturing Dresden (AMCD) with a festive ceremony on February 7, 2017. Scientists from various disciplines perform research on materials, additive manufacturing processes and innovative technologies, which build up components in a layer by layer process. This technology opens up new horizons for component design and combinations of functions. For example during fabrication, electrical conductors and sensors are already able to be additively manufactured into components. They provide information about stress conditions of a product during operation.

The 3D-printing technology, or additive manufacturing as it is often called, has long made the step out of scientific research laboratories into industrial...

Im Focus: Mimicking nature's cellular architectures via 3-D printing

Research offers new level of control over the structure of 3-D printed materials

Nature does amazing things with limited design materials. Grass, for example, can support its own weight, resist strong wind loads, and recover after being...

Im Focus: Three Magnetic States for Each Hole

Nanometer-scale magnetic perforated grids could create new possibilities for computing. Together with international colleagues, scientists from the Helmholtz Zentrum Dresden-Rossendorf (HZDR) have shown how a cobalt grid can be reliably programmed at room temperature. In addition they discovered that for every hole ("antidot") three magnetic states can be configured. The results have been published in the journal "Scientific Reports".

Physicist Dr. Rantej Bali from the HZDR, together with scientists from Singapore and Australia, designed a special grid structure in a thin layer of cobalt in...

All Focus news of the innovation-report >>>

Anzeige

Anzeige

Event News

Booth and panel discussion – The Lindau Nobel Laureate Meetings at the AAAS 2017 Annual Meeting

13.02.2017 | Event News

Complex Loading versus Hidden Reserves

10.02.2017 | Event News

International Conference on Crystal Growth in Freiburg

09.02.2017 | Event News

 
Latest News

Stingless bees have their nests protected by soldiers

24.02.2017 | Life Sciences

New risk factors for anxiety disorders

24.02.2017 | Life Sciences

MWC 2017: 5G Capital Berlin

24.02.2017 | Trade Fair News

VideoLinks
B2B-VideoLinks
More VideoLinks >>>