Metal ion release following hip replacement not strongly related to patient activity medical study
Metal ion release following hip replacement not strongly related to patient activityRead Complete Article by Clicking Here The amount of patient activity following metal-on-metal hip resurfacing arthroplasty seems to show little correlation to metal ion release, according to study presented here. Amir Kamali, PhD, presented his team’s findings at the 56th Annual Meeting of the Orthopedic Research Society.Kamali reported that his group looked at 25 consecutive male patients who underwent a unilateral, 50-mm diameter metal-on-metal hip resurfacing……”I should mention here that at 1,
MRI Useful for Predicting Failure of Metal-on-Metal Hip ImplantsOriginal Link http://www.hss.edu/newsroom_metal-on-metal-tissue-damage-before-pain.asp
New York – May 15, 2013Metal-on-metal hip implants can cause inflammation of the joint lining (synovitis) long before symptoms appear, and magnetic resonance imaging (MRI) can be used to identify this inflammation, according to a new study by researchers at Hospital for Special Surgery. The study, which appears in an upcoming issue of the Journal of Bone & Joint Surgery, demonstrates that MRI can be used to identify implants that are going to fail before people become symptomatic.“The study shows that synovitis exists… Read the rest
Acclaimed for exceptional patient care and for its reputation among healthcare professionalsNew York – July 16, 2013U.S. News & World Report has again named Hospital for Special Surgery the top hospital in the country for orthopedics in its 2013 “Best Hospitals” survey. The hospital also ranked as a leader in rheumatology at number four in the nation.Hospital for Special Surgery has been among the top ranked institutions in orthopedics and rheumatology for 23 consecutive years.“We are proud to be recognized nationally as the best in our specialized fields,” said Louis A. Shapiro, president and CEO of… Read the rest
BHR – Birmingham Hip Resurfacing System by Smith & Nephew
Corin Cormet Hip Resurfacing Device withdrawn from US Market 2013
Wright Medical Conserve Plus Hip Resurfacing Device withdrawn from US Market 2014
ASR Recalled from Market… Read the rest
Derek McMinn addresses the recent Concerns about Hip Resurfacing and Metal on Metal (MoM) implants Interview by Vicky Marlow
Original Link: http://vimeo.com/12418781
Internationally renowned hip and knee surgeon and designer and pioneer of the Birmingham Hip Resurfacing, Derek McMinn addresses concerns about Hip Resurfacing and Metal on Metal (MoM) implants.
Derek McMinn has done over 6000 total hip surgeries and over 3,500 MoM Hip Resurfacings. His 10 year survivorship for the BHR (Birmingham Hip Resurfacing)in a series of 3095 performed up until December 2009 is 97% from all patients. His first metal/metal resurfacing prototype was implanted in 1991, and the … Read the rest
Patients Report Improvement in Quality of Life and Satisfaction After Hip Resurfacing Arthroplasty
Wael A. Rahman MD, Nelson V. Greidanus MD, MPH, Alexander Siegmeth MD, Bassam A. Masri MD, Clive P. Duncan MD, MSc, Donald S. Garbuz MD, MHSc Symposium: Papers Presented at the Annual Meetings of The Hip Society Online First ™ – October , 2012
A number of reconstructive procedures are available for the management of hip osteoarthritis. Hip resurfacing arthroplasty is now an accepted procedure, with implant survivorship comparable to THA at up to 10 years follow-up in certain series. Most reports focus on
|Peter Kay Response to Metal Ion Level Test for MOM in UK after FDA update 1/2013I think overall, from the U.K. perspective, metal-on-metal has been a real problem. (For) most surgeons in the United Kingdom, our usage of metal-on-metal hip replacements has dwindled to almost nothing because we cannot really find any advantage. The patients do not do any better in terms of function. There is some evidence the patient’s reported pain levels are higher anyway and the revision rate is higher, so it is not adding much value.In terms of metal-on-metal, we (Medicines and Healthcare products Regulatory|
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I would like to take this opportunity to comment on the Lancet article, “Failure rates of metal-on-metal hip resurfacings: analysis of data from the National Joint Registry for England and Wales”, by Professor AW Blom, published on October 2, 2012.First of all, this is an observational scientific study with valid research design and questions; however, the conclusions point out the limitations of registry studies (more on this to follow). Overall the conclusions of the study do NOT find any new information that has not already been known since 2010: that certain hip resurfacing
|Public release date: 9-Mar-2010|
Study finds elevated levels of cobalt and chromium in offspring of patients with metal-on-metal hip implants
Hip replacement patients with metal-on-metal (MoM) implants (both the socket and hip ball are metal) pass metal ions to their infants during pregnancy, according to a new study presented today at the 2010 Annual Meeting of the American Academy of Orthopaedic Surgeons (AAOS). Data showed there is a correlation between cobalt and chromium levels in the mother and those in her infant at the time of delivery.
“Although the affects of metal ions in maternal and fetal subjects are unknown,
|Larger cups and optimal positioning produced lowest ion
levels and wear|
In a review of 585 blood serum evaluations following hip resurfacing, only femoral size and cup inclination were found to have an effect on ion levels, according a study by orthopedic investigators.
The findings were presented at the 2010 Annual Meeting of the American Academy of Orthopaedic Surgeons.
David J. Langton, MRCS, and his colleagues also found that the size of the coverage angle of the acetabular component contributed significantly to its tolerance of suboptimal positioning.
“Larger joints, it must be emphasized, tolerated suboptimal cup position,” he said. “This
20 Year Resurfacing McMinnCementless McMinn Resurfacing – 20 year results
Thomas P. Schmalzried, MD, presented his experience at the International Congress for Joint Reconstruction San Diego 2012 meeting…Although there has been no standard of review established in the United States, Schmalzried noted routine follow-up should be considered good practice……Schmalzried mentioned the special risks inherent in metal-on-metal hip replacements, including higher monoblock loosening rates and adverse local tissue reactions (ALTRs)…“Head size seems to matter when we talk about total hip replacement in metal-on-metal bearings,” Schmalzried said. “Loosening is the issue you get when you start looking at large diameter bearings. The majority are greater than 36 mm.”…The