Aircraft technology helps diagnose artificial hip, knee problems

KINGSTON, R.I. (February 20, 2003) To assess the wear and tear on jet engine parts, mechanics used an old technology called ferrography to run the aircraft's lubricating fluid through a magnetic device to separate out metal shavings and other ferrous engine debris. A University of Rhode Island researcher uses a similar process to assess the wear and tear on artificial hip and knee joints so patients can reduce the number of follow-up surgeries they must undergo or reduce the time spent in revision surgery.

Donna Meyer, an assistant professor of mechanical engineering, anticipates using her research to create a "wear atlas" that can be used by orthopedic surgeons as a diagnostic tool. She said the atlas could be used to help identify the potential problems that patients are having with their implants prior to revision surgery.

Most artificial hips consist of a polyethylene socket and metal ball or metal-on-metal combinations that are connected to adjoining bones with screws or cement. Total knee replacements are made of similar materials. Over time as the ball, socket and bone rub against each other, tiny debris is produced and settles between the bone and the implant interface, discouraging the much needed growth of bone around the prosthesis. This contributes to the loosening and separation of the interface, which necessitates revision surgery to repair it.

"Polyethylene wear debris can be a significant problem for patients because a loosened joint can cause great discomfort," said Meyer, a Cranston resident. "If we can determine the number and size of wear debris contained in a patient's synovial fluid, and also look at the ratio of polyethylene to other constituents like metal, bone, and cement particles, we can create a tool to assist in diagnosing the problem with the implant before surgery is necessary. Ultimately we would like to minimize the number of revision surgeries that patients face, or at least minimize the amount of ti

Contact: Todd McLeish
University of Rhode Island

Page: 1 2

Related medicine news :

1. Aircraft cabin ventilation influences the transmission of diseases in-flight
2. Yale technology translates to sonic golf training tool
3. New self-help technology set to combat eating disorders
4. PENN begins clinical trial of newest technology to treat thoracic aortic aneurysms
5. Computer memory, MRI technology benefit from student research at UH
6. PENN study emphasizes need for national guidelines for assisted reproductive technology programs
7. Countrys first simplified maze using new ultrasound technology is done at Northwestern Memorial
8. Rutgers-developed biomaterial drives a technology transfer story toward success
9. Workshop in Kathmandu on space technology for sustainable development in mountain areas
10. University of Pennsylvania Health System launches life-saving eICU technology
11. Rehabilitation professionals in nationwide survey cite barriers to assistive technology transfer

Post Your Comments:

(Date:10/13/2017)... ... October 13, 2017 , ... Dickinson Insurance and Financial ... financial preparation services, is providing an update on a charitable event that began ... Rescue is a locally recognized nonprofit that provides shelter and care for animals ...
(Date:10/13/2017)... ... , ... The American Board of Family Medicine's (ABFM) Board of Directors has ... succeeding Dr. James C. Puffer upon his retirement. Dr. Newton will serve in the ... at the end of 2018. Upon assuming the role of President and CEO on ...
(Date:10/13/2017)... ... October 13, 2017 , ... ... alumni Hannah Randall, PharmD ‘17, and Jennifer Huggins, PharmD ’17, along with ... for the primary prevention of cardiovascular diseases during the 15th Annual Women’s ...
(Date:10/13/2017)... SAN LUIS OBISPO, Calif. (PRWEB) , ... October 13, 2017 , ... ... with Alzheimer’s or dementia. However, many long-term care insurance companies have a waiver for ... mean is the 90-day elimination period, when the family pays for care, is often ...
(Date:10/13/2017)... ... 13, 2017 , ... Global Healthcare Management’s 4th Annual Kids Fun Run brought ... This free event, sponsored by Global Healthcare Management’s CEO, Jon Letko, is aimed at ... towards children of all ages; it is a non-competitive, non-timed event, which is all ...
Breaking Medicine News(10 mins):
(Date:10/4/2017)... Oct. 4, 2017 OBP Medical ... illuminating medical devices, today announced regulatory approval from ... Agency (or Agência Nacional de Vigilância Sanitária (ANVISA)) ... cordless surgical retractor with integrated LED light source ... illumination and exposure of a tissue pocket or ...
(Date:10/2/2017)... -- Halo Labs announces the European launch of their new low ... MIBio 2017 in Cambridge, U.K on October ... biopharmaceutical samples with unprecedented speed and sensitivity while using far less ... Imaging. ... analysis system ...
(Date:9/27/2017)... for their devotion to personalized service, SMP Pharmacy Solutions announces ... the South Florida Business Journal,s 50 Fastest-Growing Companies, and listed ... national specialty pharmacy has found its niche.  To that end, ... honored by SFBJ as the 2017 Power Leader in Health ... his award in October, Bardisa said of the three achievements, ...
Breaking Medicine Technology:
Cached News: