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 activity Read 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, 2, and 4 years, the average metal ion levels were similar between these implants, meaning they had gone well into their steady state,” Kamali said…
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 current design, the first BHR was implanted in July 1997 and has not changed in any way since then.
|Sports Activity After Total Hip Resurfacing Original Link http://www.ncbi.nlm.nih.gov/pubmed/20223940?dopt=Abstract|
March 11, 2010Banerjee M, Bouillon B, Banerjee C, Bäthis H, Lefering R, Nardini M, Schmidt J. Dreifaltigkeits-Krankenhaus and Cologne Merheim Medical Center. BACKGROUND: Little is known about sports activity after total hip resurfacing.
HYPOTHESIS: Patients undergoing total hip resurfacing can have a high level of sports activity. STUDY DESIGN: Case series; Level of evidence, 4.
METHODS: The authors evaluated the level of sports activities with a standardized questionnaire in 138 consecutive patients (152 hips) 2 years after total hip resurfacing. Range of motion, Harris hip score, and Oxford score were assessed, and radiological analysis was performed.
RESULTS: Preoperatively, 98% of all patients participated in sports activities. Two years postoperatively, 98% of the patients
Prednizone Side Effects – Should I Be Worried if I Take this Drug? By Nathan Wei
Prednizone- the correct spelling is “prednisone”- is a commonly used oral glucocorticoid medicine.
The adrenal glands manufacture a natural form of glucocorticoid. Glucocorticoids are responsible for many functions in the body including maintenance of blood pressure, proper use of sugar, protein, and fat metabolism, response to stress, and many other tasks.
Glucocorticoids manufactured by the body are referred to as endogenous steroids- meaning a person’s own body makes these steroids.
When steroids are taken in from the outside either by mouth, intramuscularly or intravenously, they are referred to as exogenous steroids. Taking glucocorticoids orally or intravenously can reduce the ability of the person’s own adrenal glands to continue to
|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 must be taken into account in all analyses.”
Using routinely obtained blood serum metal ion levels from patients under the care of the
|Study of cobalt and chromium levels in offspring of patients with metal-on-metal hip implants 03/09/2010|
|“You Have Your MoM’s Ions” Study finds elevated levels of cobalt and chromium in offspring of patients with metal-on-metal hip implantsNEW ORLEANS, LA 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, the fact that the placenta is|
Why is Hip Resurfacing better then a Total Hip Replacement?
Dr. De Smet
“Theoretic advantages are less bone destruction, less bone resection, normal femoral loading, avoidance of stress shielding, maximum proprioceptive feedback, and restoration of normal anatomy. In addition, reduced risk of dislocation, less leg inequality problems, and easier revision should convince surgeons to favor metal-on-metal resurfacing.”
“A resurfacing is suitable for the treatment of a hip with severe arthritis when the femoral head bone quality is good. It is used more often in young and active patients than older and less active patients because conventional replacements do not last long in young and active patients. Further, a younger patient is more likely to need a revision of an artificial hip at some
Prednisone and Massage By Nicole Cutler
One of the most often presented conditions that massage therapists encounter is chronic pain, making pain management and relief a chief goal of a massage session. Sometimes though, regular massage therapy may not be enough to relieve this kind of pain, and clients may rely on traditional Western medicine for help. The most common doctor-prescribed medications for chronic pain relief are steroids, particularly Prednisone, which is primarily used as an anti-inflammatory. Since this medication is so common, it is likely that many of your clients are taking it for pain relief. This makes it absolutely necessary for massage therapists to know and understand any and all possible contraindications with this drug.
Taking Prednisone for chronic pain may offer tremendous
Does commitment to rehabilitation influence the clinical outcome of total hip resurfacing arthroplasty study 2010
|The purpose of this study was to evaluate whether compliance and rehabilitative efforts were predictors of early clinical outcome of total hip resurfacing arthroplasty. Methods: A cross-sectional survey was utilized to collect information from 147 resurfacing patients, who were operated on by a single surgeon, regarding their level of commitment to rehabilitation following surgery. Patients were followed for a mean of 52 months (range, 24 to 90 months). Clinical outcomes and functional capabilities were assessed utilizing the Harris hip objective rating system, the SF-12 Health Survey, and an eleven-point satisfaction score. A linear regression analysis was used to determine whether there was any correlation between the rehabilitation commitment|
The issue of cup slippage in the immediate postop
period is a controversial one.
While bone ingrowth takes around 6 wks. – the
hydroxy apatite to bone chemical reaction can occur
much more quickly.
If we surgeons feel that the
cup is not perfectly tight ( press fit) during the
surgery then we restrict activities for a 6 -8 wk
period .This is done in the hope that no
precipitating event would occur that would tilt the
balance adversely till some stability occurs as we
have not achieved primarily stability during
surgery. I must say that most of these times we are
able to ‘escape’ component loosening.
I have done this a few times in my very early cases
, many years ago. Of course … Read the rest