MedWorm: Artificial Hip

Squeaking Hip Replacements

About.com Eating Disorders — Mon, 06 Feb 2012 05:00:00 +0100

A hip replacement is a surgical procedure that replaces a worn out ball-and-socket joint with an artificial joint. Certain types of artificial hip replacements have been found to make a squeaking noise. Often a squeaking hip replacement is just an inconvenience, but sometimes a noisy hip may be a sign of problems with the implant. (Source: About.com Eating Disorders)

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Cognitive decline in patients with metal-on-metal hips: think cobalt toxicity

The Poison Review — Tue, 31 Jan 2012 04:56:05 +0100

This weekend both the Daily Mail (U.K.) and the Sunday Telegraph (U.K.) had stories highlighting the dangers of metal-on-metal artificial hips, which have a high rate of failure, causing local tissue inflammation, pain, and leaching of chromium and cobalt into blood and other tissues. A recent letter to the BMJ (Arthroprosthetic cobaltism associated with metal on metal implants. BMJ 2012;344:e430) describes several patients who received the metal-on-metal hip implants who developed progressive hip pain, elevated cobalt levels, cognitive impairment, neuropathy, and cardiomyopathy. Associated symptoms included new onset depression, anxiety, tinnitus, and thyroid abnormalities. Dr. Stephen S. Tower, the author of the BMJ letter, suggests that patients with these implants should be suspe...

Fears of faulty 'toxic' hip replacement implant

NHS News Feed — Mon, 30 Jan 2012 10:16:00 +0100

Many newspapers and TV stations have reported that medical regulators have launched an investigation into a type of hip replacement called a metal-on-metal (MoM) device (DePuy ASR hip replacement implant). The concern is that as the hip replacements wear down, metal particles can be released from the artificial hip, react with the soft tissue (such as muscle and ligaments) surrounding the joint and enter the bloodstream. In 2010, the UK regulator, the Medicines and Healthcare products Regulatory Agency (MHRA) issued a product recall for DePuy ASR, a brand of MoM artificial hip. This meant that surgeons were told not to implant DePuy ASR hip replacements and return any unused implants to the manufacturer. The MHRA has urged surgeons to tell all patients that had received these DePuy ASR hip...

Bernstein Liebhard LLP Continues To Cover Fallout From Artificial Hip...

PRWeb: Medical Pharmaceuticals — Fri, 06 Jan 2012 06:35:15 +0100

Bernstein Liebhard LLP reports on two recent articles published in the New York Times, detailing problems stemming from the August 2010 metal-on-metal hip implant recall.(PRWeb January 03, 2012)Read the full story at http://www.prweb.com/releases/hip-replacement-recall/new-york-times/prweb9076353.htm (Source: PRWeb: Medical Pharmaceuticals)

S&N in joint venture with private equity firm

FT.com - Drugs and Healthcare — Wed, 04 Jan 2012 20:29:52 +0100

British maker of artificial hips and knees is to spin off its biological therapies unit into deal with US-based Essex Woodlands (Source: FT.com - Drugs and Healthcare)

The High Cost of Failing Artificial Hips

NYT — Thu, 29 Dec 2011 17:28:30 +0100

The widespread failure of all-metal hips may cost taxpayers, insurers and employers billions of dollars in the coming years. (Source: NYT)

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Artificial hips glide on graphite

Chemistry World | Latest News — Fri, 23 Dec 2011 06:51:10 +0100

Artificial hips lubricate themselves by grinding up proteins, but are graphite fragments something we want in our bodies? (Source: Chemistry World | Latest News)

Metal hip lubricant reduces wear and tear: study

Modern Medicine — Fri, 23 Dec 2011 05:00:00 +0100

CHICAGO (Reuters) - A substance that forms in patients with all-metal artificial hips turns out to contain the common lubricant graphite, a discovery that could help in designing longer lasting implants, researchers said. (Source: Modern Medicine)

New Models of Hip and Knee Implants Not Better, Study Finds

NYT Health — Fri, 23 Dec 2011 03:27:32 +0100

Not a single new artificial hip or knee introduced over a recent five-year period was any more durable than older ones. In fact, 30 percent of them fared worse. (Source: NYT Health)

Metal hip lubricant reduces wear and tear: study

Reuters: Health — Thu, 22 Dec 2011 19:01:12 +0100

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Senate Introduces Bill To Track Implant Failure Rates

PRWeb: Medical Pharmaceuticals — Mon, 19 Dec 2011 18:21:41 +0100

Bernstein Liebhard LLP endorses a new bill that would force medical device manufacturers to track the performance of implants, including artificial hips and vaginal mesh.(PRWeb December 16, 2011)Read the full story at http://www.prweb.com/releases/senate-bill-track-implant/failure-rates-depuy/prweb9050119.htm (Source: PRWeb: Medical Pharmaceuticals)

Analysis: Hospitals target pricey medical devices for savings

Reuters: Health — Wed, 30 Nov 2011 15:49:28 +0100

(Reuters) - When U.S. hospitals cut expenses as the economy slid into recession, they looked first to basic supplies like light bulbs and bandages. Next on the list: artificial hips and knees. (Source: Reuters: Health)

Artificial Hips: Newer Might Not Be Better

eMedicineHealth.com — Wed, 30 Nov 2011 07:00:00 +0100

(Source: eMedicineHealth.com)

Analysis: Hospitals target pricey medical devices for savings

Reuters: Health — Tue, 29 Nov 2011 23:50:42 +0100

(Reuters) - When U.S. hospitals cut expenses as the economy slid into recession, they looked first to basic supplies like lightbulbs and bandages. Next on the list: artificial hips and knees. (Source: Reuters: Health)

Artificial Hips: Newer Might Not Be Better

WebMD Health — Tue, 29 Nov 2011 18:41:08 +0100

Traditional hip implants might be safer and last longer than some new ones, an FDA-funded study finds. (Source: WebMD Health)

Metal ion / Pyridinedicarboxylate Polymer composites as inhibitors of bacterial biofilm formation: Category: Scientific free paper

Journal of Infection — Fri, 25 Nov 2011 11:05:45 +0100

Bacterial biofilms are extremely resistant forms of bacterial colonization and have serious health and economic implications. One significant consequence of bacteria growing as biofilms is their resistance to medical and industrial control strategies compared to their single cell forms, which render biofilms of enormous impact on medicine and economy Biofilms can exist on many medical implants such as catheters, artificial hips, contact lenses, etc. and owing to their increased resistance to antimicrobial agents, they can often only be treated by removal of the implant, which increases the trauma to the patient and the cost of treatment (Source: Journal of Infection)

Thousands Fear Artificial Hips Are Poisoning Them

Sat, 19 Nov 2011 04:31:08 +0100

BOSTON (CBS) – Artificial hips are supposed to relieve pain, but now thousands of patients are afraid their hips are poisoning them. One popular hip has been recalled, and there are a growing number of lawsuits. At just 36, Katie Ayers was prompted by chronic pain to get an artificial hip. “It was supposed to be the latest and greatest. It was supposed to be perfect for a younger female,” she said. WBZ-TV’s Joe Shortsleeve reports var videoCanvas = new WNVideoWidget("WNVideoCanvas", "wnVideo_6470703");videoCanvas.SetWidth(320);videoCanvas.SetHeight(240);videoCanvas.SetVariable("clipId", "6470703");videoCanvas.SetReportingKeywords("CBS.BOSTON");videoCanvas.SetAdvertisingZone("CBS.BOSTON/worldnowplayer");videoCanvas.SetVariable("offFaceColor", "afaeae");videoCanvas.SetVariabl...

Smith & Nephew in shift to low-cost countries

FT.com - Drugs and Healthcare — Fri, 04 Nov 2011 20:04:05 +0100

UK group to make more of its artificial hips and knees in low-cost countries such as China to reduce cost burden that hit third-quarter profits (Source: FT.com - Drugs and Healthcare)

S&N profit falls on high orthopedics costs

Reuters: Health — Fri, 04 Nov 2011 09:55:03 +0100

LONDON (Reuters) - Smith & Nephew, Europe's largest artificial hip and knee maker, posted 9 percent lower third-quarter trading profit, saying its costs were too high for the subdued orthopedics market. (Source: Reuters: Health)

S&N Q3 profit falls as orthopedics margin disappoints

Reuters: Health — Fri, 04 Nov 2011 07:53:18 +0100

LONDON (Reuters) - Smith & Nephew, Europe's largest artificial hip and knee maker, missed third-quarter earnings expectations as its orthopedics business was squeezed by an adverse sales mix and high costs not appropriate in subdued market conditions. (Source: Reuters: Health)

Rigorous Exercise May Delay Hip Replacement

Rheumatology News — Sat, 01 Oct 2011 04:00:00 +0100

Major Finding: After going through a rigorous 3-month exercise program, 40% of patients with hip osteoarthritis (22) got a hip replacement within 3.5-6 years; 57% of their control group peers who did not go through the exercise program (31) got an artificial hip during the same period. (Source: Rheumatology News)

Failure Rate of All-Metal Hips Is Increasing, Study Says

NYT Health — Fri, 16 Sep 2011 04:23:04 +0100

A British registry found that all-metal artificial hips failed at a significantly higher rate than those made from other materials. (Source: NYT Health)

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Treatment of pelvic defect and infection with endoprosthesis exposure by topical negative pressure and irrigation with myocutaneous flap

Microsurgery — Wed, 14 Sep 2011 04:00:00 +0100

We describe a 17‐year‐old woman with Ewing sarcoma in the pelvis who underwent hemipelvectomy and reconstruction with an artificial hip joint and bone cement. After the operation, skin necrosis and deep infection with methicillin‐resistant Staphylococcus aureus (MRSA) were observed. Debridement resulted in exposure of the artificial joint and bone cement. Topical negative pressure (TNP) and irrigation successfully eradicated the infection. The skin and soft‐tissue defect was subsequently reconstructed using a combination of free latissimus dorsi myocutaneous flap and serratus anterior muscle flap. To our knowledge, this is the first described case of combined TNP and irrigation with myocutaneous flap for the treatment of pelvic infection and skin and soft‐tissue defect with endop...

DePuy's Handling of Hip Recall Sparks Ethics QuestionsDePuy's Handling of Hip Recall Sparks Ethics Questions

Medscape Medical News Headlines — Wed, 24 Aug 2011 01:05:09 +0100

Johnson & Johnson, which could face billions of dollars in costs over an artificial hip recall, is taking an unusual approach to managing the crisis - one that could limit its financial exposure, legal experts say. Reuters Health Information (Source: Medscape Medical News Headlines)

Hip Implant Complaints Surge, Even as the Dangers Are Studied

NYT Health — Tue, 23 Aug 2011 11:45:58 +0100

The F.D.A. received more than 5,000 reports since January about several artificial hip devices, more than it received about those devices in the last four years. (Source: NYT Health)

Complaints Soar on Hip Implants as Dangers Are Studied

NYT Health — Tue, 23 Aug 2011 11:45:58 +0100

The F.D.A. received more than 5,000 reports since January about several artificial hip devices, more than it received about those devices in the last four years. (Source: NYT Health)

Insight: DePuy's handling of hip recall sparks questions

Reuters: Health — Mon, 22 Aug 2011 13:44:43 +0100

BOSTON (Reuters) - Johnson & Johnson, which could face billions of dollars in costs over an artificial hip recall, is taking an unusual approach to managing the crisis -- one that could limit its financial exposure, legal experts say. (Source: Reuters: Health)

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Smith & Nephew to target emerging markets

FT.com - Drugs and Healthcare — Fri, 05 Aug 2011 16:04:42 +0100

Olivier Bohuon, the chief executive, said Europe's largest maker of artificial hips and knees will focus on expansion in Brazil, Russia, India and China (Source: FT.com - Drugs and Healthcare)

Two Distinct Biofilms Produced By One Species Of Pathogen

Health News from Medical News Today — Wed, 03 Aug 2011 11:00:00 +0100

Many medical devices, ranging from artificial hip joints to dentures and catheters, can come with unwelcome guests - complex communities of microbial pathogens called biofilms that are resistant to the human immune system and antibiotics, thus proving a serious threat to human health. However, researchers may have a new way of looking at biofilms, thanks to a study conducted by University of Iowa biologist David Soll and his colleagues published in the Aug 2 issue of the online, open access journal PLoS Biology... (Source: Health News from Medical News Today)

UI biologist finds one species of pathogen can produce two distinct biofilms

EurekAlert! - Medicine and Health — Wed, 03 Aug 2011 04:00:00 +0100

(University of Iowa Health Care) Many medical devices, ranging from artificial hip joints to dentures and catheters, become sites for unwelcome guests -- complex communities of microbial pathogens called biofilms that are resistant to the human immune system and antibiotics, thus proving a serious threat to human health. However, researchers may have a new way of looking at biofilms, thanks to a study conducted by University of Iowa biologist David Soll and his colleagues. (Source: EurekAlert! - Medicine and Health)

Biofilms On Medical Devices Can Be Produced By One Species Of Pathogen

Health News from Medical News Today — Tue, 02 Aug 2011 21:00:00 +0100

New research conducted by University of Iowa biologist David Soll and colleagues, and published in PLoS Biology sheds new light on the nature of biofilms that are often found on medical devices. Items such as artificial hip joints, dentures, catheters and other man made devices placed inside the body, provide a potential breeding ground for complex communities of microorganisms. Many of these organisms have proved resistant to both the human immune system and treatment with antibiotics and other medication... (Source: Health News from Medical News Today)

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Study Faults Approval Process for Medical Devices

NYT — Sat, 30 Jul 2011 07:03:59 +0100

A top scientific group said the system that examines the safety of devices like artificial hips should be replaced. (Source: NYT)

Study Calls Approval Process for Medical Devices Flawed

NYT — Sat, 30 Jul 2011 07:03:59 +0100

A top scientific group said the system that examines the safety of devices like artificial hips should be replaced. (Source: NYT)

Study Faults Approval Process for Medical Devices

NYT Health — Fri, 29 Jul 2011 15:05:52 +0100

A top scientific group said the system that examines the safety of devices like artificial hips should be replaced. (Source: NYT Health)

Study Calls Approval Process for Medical Devices Flawed

NYT Health — Fri, 29 Jul 2011 13:01:28 +0100

A top scientific group said the system failed to examine the safety and effectiveness of devices like artificial hips, and should be abandoned and replaced. (Source: NYT Health)

Replacing worn out joints: new materials and designs come to artificial hips and knees.

Chemistry and Biology — Thu, 28 Jul 2011 23:00:00 +0100

Authors: Erdmann J PMID: 21801999 [PubMed - in process] (Source: Chemistry and Biology)

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Current progress in inorganic artificial biomaterials

Journal of Artificial Organs — Tue, 12 Jul 2011 05:55:23 +0100

Abstract In this review, recent advances in bioceramics, metallic biomaterials, and their composites are discussed in terms of their material properties and new medical applications. Porous calcium phosphate ceramics have attracted a lot attention as scaffolds for tissue-engineering purposes since the porous structure allows bone ingrowth. The addition of biodegradable polymers like chitosan, gelatin, and collagen have modified the degradability of the ceramics and their mechanical properties. Titanium (Ti) alloys are being developed for the fabrication of medical devices for the replacement of hard tissue such as artificial hip joints, bone plates, and dental implants because they are very reliable from the viewpoint of mechanical performance. Physical treatment such as g...

In Medicine, New Isn’t Always Improved

NYT Health — Sat, 25 Jun 2011 17:55:04 +0100

Implants of metal-on-metal artificial hips provide one example of how a seeming medical breakthrough can pose unexpected problems and risks. (Source: NYT Health)

FDA Approves First Ceramic-on-Metal Total Hip Replacement System

Health News from Medical News Today — Thu, 16 Jun 2011 07:00:00 +0100

The U.S. Food and Drug Administration approved on June 13 the first ceramic-on-metal total artificial hip system for patients with osteoarthritis. Hip joints consist of bone in the shape of a ball at the top of the thighbone (femur) that fits into a rounded socket in the pelvis (acetabulum). During total hip replacement surgery, worn and damaged portions of bone and cartilage are removed and replaced with an artificial hip joint... (Source: Health News from Medical News Today)

J&J wins U.S. approval for hip replacement system

Reuters: Health — Tue, 14 Jun 2011 19:18:21 +0100

NEW YORK (Reuters) - A ceramic-on-metal artificial hip system made by Johnson & Johnson for patients with osteoarthritis has won U.S. approval, the Food and Drug Administration said on Tuesday. (Source: Reuters: Health)

FDA Approves First Ceramic-on-metal Total Hip Replacement System

Health News from Medical News Today — Tue, 14 Jun 2011 17:00:00 +0100

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FDA approves first ceramic-on-metal total hip replacement system

Food and Drug Administration — Tue, 14 Jun 2011 15:48:00 +0100

The U.S. Food and Drug Administration approved on June 13 the first ceramic-on-metal total artificial hip system for patients with osteoarthritis. (Source: Food and Drug Administration)

[Rehabilitation and sport following total hip replacement.]

Der Orthopade — Tue, 31 May 2011 23:00:00 +0100

Authors: Schmitt-Sody M, Pilger V, Gerdesmeyer L The number of total hip replacement (THR) surgeries has increased significantly over the last few years and patients undergoing surgery are of decreasing age. In consequence the question of the influencing factors for the survival of artificial hip joints becomes more and more urgent. The expected survival time of an implant is nowadays 15-20 years and it seems that factors for a shorter lifetime are female gender, overweight, younger age and certain indications which led to surgery, such as rheumatoid arthritis or fractures. In the early phase of rehabilitation, measures against dislocation including training of the abductor muscles are most important. Starting rehabilitation programs early after surgery has positive effects on outcome...

Health Highlights: May 11, 2011

The Doctors Lounge - Health News — Wed, 11 May 2011 15:41:00 +0100

Crash Deaths Cost U.S. $41 Billion a Year: Report Not Hard to Quit Smoking: Tobacco Company CEO Odor Triggers Another J&J Drug Recall VA Must Overhaul Mental Health Care System: Appeals Court Anti-Psychotic Drugs Given to Nursing Home Patients With Dementia FDA Orders Follow-Up Studies of Metal-on-Metal Artificial Hips Appeals Court Begins Hearing of Health Care Law Case (Source: The Doctors Lounge - Health News)

Hip Makers Told to Study More Data

NYT — Wed, 11 May 2011 03:39:35 +0100

The Food and Drug Administration ordered all producers of a popular category of artificial hip to study the implants, which have been linked to severe health effects in some patients. (Source: NYT)

Dose Calculation in the Presence of Hip Prostheses: Standard and Monte Carlo Algorithms versus Measurements

Clinical Oncology — Tue, 15 Mar 2011 18:27:14 +0100

Introduction: Artificial hips remain a challenge in radiotherapy as conventional treatment planning systems (TPS) are not able to accurately model the dose perturbations produced. The introduction of Monte Carlo (MC) TPS into the clinic is expected to improve the accuracy in the vicinity of high-Z inhomogeneities. The aim of the present study is to compare measurements near such boundaries with the recently commissioned MC TPS Monaco (CMS) and the conventional TPS XiO (CMS). (Source: Clinical Oncology)

Consumer Information on: DePuy Orthopaedics Ceramax Ceramic Total Hip System - P070026

Food and Drug Adminstration (FDA): CDRHNew — Fri, 14 Jan 2011 05:00:00 +0100

The Ceramax Ceramic Hip System is a ceramic on ceramic artificial hip replacement system, surgically implanted to completely replace a hip joint. (Source: Food and Drug Adminstration (FDA): CDRHNew)

DePuy Orthopaedics Ceramax Ceramic Total Hip System

Medical Device Approvals — Fri, 14 Jan 2011 05:00:00 +0100

The Ceramax Ceramic Hip System is a ceramic on ceramic artificial hip replacement system, surgically implanted to completely replace a hip joint. (Approved: 12/23/2010) (Source: Medical Device Approvals)

Maritimers to join artificial-hip lawsuit

CBC | Health — Thu, 13 Jan 2011 17:01:36 +0100

Several Maritimers are among those joining a class-action lawsuit against an artificial hip manufacturer. (Source: CBC | Health)

The Implants Loophole

NYT Health — Fri, 17 Dec 2010 05:50:05 +0100

DePuy’s artificial hip was marketed in the United States with a crucial component that had not been rigorously tested in patients. (Source: NYT Health)

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Artificial hips made of diamonds are for ever

the Mail online | Health — Mon, 25 Oct 2010 20:52:43 +0100

Diamond-coated hips that last a lifetime could help 50,000 osteoarthritis sufferers who need replacement joints. (Source: the Mail online | Health)

Maker Recalls Replacement Hip Devices

MedPage Today Public Health — Fri, 27 Aug 2010 21:33:25 +0100

(MedPage Today) -- The maker of an artificial hip system issued a voluntary recall of its ASR product line after data indicated a higher than expected need for device replacement surgery five years after the initial procedure. (Source: MedPage Today Public Health)

Senator Seeks Data on Complaints About Artificial Joints

NYT Health — Sat, 31 Jul 2010 04:29:19 +0100

Senator Charles E. Grassley requested data from Zimmer Holdings, a maker of artificial hips and knees, on how it responded to complaints from surgeons. (Source: NYT Health)

Senator Seeks Data on Artificial Hips and Knees

NYT — Sat, 31 Jul 2010 04:29:19 +0100

Senator Charles E. Grassley requested data from Zimmer Holdings, a maker of artificial hips and knees, on how it responded to complaints from surgeons. (Source: NYT)

Early test of stem cell joint repair

NHS News Feed — Thu, 29 Jul 2010 13:02:00 +0100

Conclusion This interesting study has demonstrated the potential of a new technique. The researchers point out the areas that need further investigation: They do not yet know where the stem cells (or progenitor early cartilage cells) came from. Although they think that some of these cells are derived from stem or progenitor cells of synovium, bone marrow, fat cells and perhaps blood vessels, more research will be needed to find out exactly where they came from. They suspect that if TGFβ3 can attract multiple cell types then more research will be needed to find out how to target the specific cell populations needed for the regeneration of more complex tissues. They say that it is good news that the regenerated cartilage is strong enough for weight bearing in rabbits. The real te...

Wear rate evaluation of a novel polycarbonate-urethane cushion form bearing for artificial hip joints

Acta Biomaterialia — Tue, 13 Jul 2010 23:00:00 +0100

Abstract: There is growing interest in the use of compliant materials as an alternative to hard bearing materials such as polyethylene, metal and ceramics in artificial joints. Cushion form bearings based on polycarbonate-urethane (PCU) mimic the natural synovial joint more closely by promoting fluid-film lubrication. In the current study, we used a physiological simulator to evaluate the wear characteristics of a compliant PCU acetabular buffer, coupled against a cobalt–chrome femoral head. The wear rate was evaluated over 8 million cycles gravimetrically, as well as by wear particle isolation using filtration and bio-ferrography (BF). The gravimetric and BF methods showed a wear rate of 9.9–12.5mg per million cycles, whereas filtration resulted in a lower wear rate of 5.8mg per milli...

Analysing the protective potential of padded soccer goalkeeper shorts

British Journal of Sports Medicine — Fri, 21 May 2010 16:04:18 +0100

Conclusions The quality of most of the currently available goalkeeper shorts needs to be improved to effectively prevent hip injury sustained in side jumps. (Source: British Journal of Sports Medicine)

[Heart failure and stasis ulcer: A significant association (prospective study of 100 cases)]

Annales de Dermatologie et de Cenereologie — Fri, 30 Apr 2010 23:00:00 +0100

This study highlights two risk factors for stasis ulcer: artificial knee joints (in the univariate analysis only) and HF. An increase in leg oedemas is probably an important mechanism but we suggest the role of hypoxaemia in patients with isolated left HF. We advise an internist approach in the management of venous leg ulcers, which we prefer to name stasis ulcers, before having ruled out a general disease. In particular, we recommend a consultation with a cardiologist in the event of doubt. PMID: 20470915 [PubMed - in process] (Source: Annales de Dermatologie et de Cenereologie)

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Metal hip replacements in pregnant women leach chromium and cobalt into babies

NaturalNews.com — Wed, 31 Mar 2010 07:00:00 +0100

(NaturalNews) Between 200,000 and 300,000 hip replacement operations are performed each year in the U.S., mostly in people over the age of 60. However, according to the American Academy of Orthopaedic Surgeons (AAOS), five to 10% of these procedures are in patients younger than 50 -- including women of childbearing age. Now comes a disturbing report that suggests women who have the metal-on-metal type of artificial hip joint and become pregnant could be putting their unborn babies at risk.A study by researchers at Rush University Medical Center recently presented at the 2010 Annual Meeting of the American Academy of Orthopaedic Surgeons held in New Orleans revealed that expectant mothers with metal-on-metal hip implants pass metal ions to their offspring during pregnancy. The ions, it turn...

Maker Drops Hip Device, Then Warns of Failures

NYT > Health — Wed, 10 Mar 2010 04:06:48 +0100

DePuy Orthopaedics alerted doctors to a high early failure rate of its artificial hip after announcing it would phase out the device citing slow sales. (Source: NYT > Health)

Metal-on-metal hip implants risky: surgeon

CBC | Health — Thu, 04 Mar 2010 21:45:19 +0100

Artificial hips, known as metal-on-metal hip replacements, are setting off alarm bells among some patients and surgeons north and south of the border. (Source: CBC | Health)

Smith & Nephew beats expectations

FT.com - Drugs and Healthcare — Fri, 12 Feb 2010 02:00:00 +0100

Full-year sales growth at Smith & Nephew slows, but the maker of artificial hips and knee joints posts a stronger-than-expected fourth quarter in its smaller divisions, helping to push shares to their highest level in 18 months (Source: FT.com - Drugs and Healthcare)

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Researchers find regular gratitude can promote health

CTV Health — Wed, 25 Nov 2009 13:59:21 +0100

Bill Golden survived more than 20 years in the U.S. Army and another 30 in law enforcement. He fell sick with colon cancer, and at 86, he has an artificial hip. Golden still gives thanks, though, and researchers say that appreciative attitude can be good for you, too. (Source: CTV Health)

Consumer Information on: CONSERVE® Plus Total Resurfacing Hip System - P030042

Food and Drug Adminstration (FDA): CDRHNew — Wed, 18 Nov 2009 05:00:00 +0100

The CONSERVE® Plus Total Resurfacing Hip System is a metal on metal resurfacing artificial hip replacement system, surgically implanted to replace a hip joint. The CONSERVE® Plus Total Resurfacing Hip System is called a resurfacing prosthesis because... (Source: Food and Drug Adminstration (FDA): CDRHNew)

CONSERVE® Plus Total Resurfacing Hip System

Medical Device Approvals — Wed, 18 Nov 2009 05:00:00 +0100

The CONSERVE® Plus Total Resurfacing Hip System is a metal on metal resurfacing artificial hip replacement system, surgically implanted to replace a hip joint. The CONSERVE® Plus Total Resurfacing Hip System is called a resurfacing prosthesis because... (Approved: 11/3/2009) (Source: Medical Device Approvals)

Microstructure analysis and wear behavior of titanium cermet femoral head with hard TiC layer

Journal of Biomechanics — Mon, 19 Oct 2009 00:00:00 +0100

Abstract: Titanium cermet was successfully synthesized and formed a thin gradient titanium carbide coating on the surface of Ti6Al4V alloy by using a novel sequential carburization under high temperature, while the titanium cermet femoral head was produced. The titanium cermet phase and surface topography were characterized with X-ray diffraction (XRD) and backscattered electron imaging (BSE). And then the wear behavior of titanium cermet femoral head was investigated by using CUMT II artificial joint hip simulator. The surface characterization indicates that carbon effectively diffused into the titanium alloys and formed a hard TiC layer on the Ti6Al4V alloys surface with a micro-porous structure. The artificial hip joint experimental results show that titanium cermet femoral head could n...

Orthopedic Device Industry Rattled By Proposed Tax

Health News from Medical News Today — Thu, 15 Oct 2009 14:00:00 +0100

Kaiser Health News staff writer Julie Appleby, in partnership with USA Today, explores the impact health reform proposals could have on one part of the orthopedic device industry. "For much of the past decade, times have been good for the industry, with hefty profits from steadily rising sales of artificial hips and knees, bone screws and other devices worldwide. (Source: Health News from Medical News Today)

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My surgery-free hip replacement

Daily Express - Health — Mon, 28 Sep 2009 23:00:00 +0100

AT the age of 44 Carl Millard already had one artificial hip and faced the prospect of another. Years of steroid use to control a condition called vasculitis that attacks blood vessels throughout the body had killed the bone cells in his joints. (Source: Daily Express - Health)

The Promise Of Better Artificial Joints, Arterial Stents, Using Laser Processes

IT / Internet / E-mail News From Medical News Today — Wed, 16 Sep 2009 13:00:00 +0100

Researchers are developing technologies that use lasers to create arterial stents and longer-lasting medical implants that could be manufactured 10 times faster and also less expensively than is now possible. New technologies will be needed to meet the huge global market for artificial hips and knees, said Yung Shin, a professor of mechanical engineering and director of Purdue's Center for Laser-Based Manufacturing. (Source: IT / Internet / E-mail News From Medical News Today)

[Influence of acetabular cup design on the primary implant stability : An experimental and numerical analysis.]

Der Orthopade — Tue, 28 Jul 2009 23:00:00 +0100

CONCLUSION: Therefore, cementless press-fit cups with conical cup profile do not provide a higher primary stability in comparison to hemispherical cups. Moreover, the stress on the bone cavity was lower inserting the hemispherical cup profiles in contrast to the conical profiles. PMID: 19636530 [PubMed - as supplied by publisher] (Source: Der Orthopade)

J & J: Hospital Deal Will Hurt Medical Device Sales

Health News from Medical News Today — Thu, 16 Jul 2009 13:00:00 +0100

The CFO for Johnson & Johnson's said President Obama's deal with hospitals to cut Medicare costs will reduce the sales of medical devices, Bloomberg reports: "Hospitals buy medical devices, including J&J's artificial hips and stents to prop open clogged arteries, directly from the manufacturer, (Johnson and Johnson CFO Dominic) Caruso said today in an interview with Bloomberg News. (Source: Health News from Medical News Today)

Researchers to assess the causes of loosening in artificial hip joints

Arthritis Research Campaign — Thu, 09 Jul 2009 23:00:00 +0100

Researchers at Wrightington Hospital near Wigan are planning to assess the causes of loosening in artificial hip joint surgery, which is widely performed in patients with severe osteoarthritis. (Source: Arthritis Research Campaign)

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Pr52pto assess the effectiveness of topical negative pressure (tnp) combined with local instillation of biocides against staphylococcus epidermidis and pseudomonas aeruginosa biofilm in vitro

ANZ Journal of Surgery — Mon, 27 Apr 2009 04:00:00 +0100

Introduction: S epidermidis is a recognised major biofilm pathogen and has been implicated in medical device contamination ranging from artificial hip prostheses to breast implants. Pseudomonas aeruginosa is a known pathogen in chronic wounds. Within biofilms, bacteria are enclosed in a polymeric matrix or EPS which cements the bacteria to each other and to the surface. Biofilms act to protect the bacteria from the environment increasing resistance to host immunity, antibiotics and biocides. More recently, we have shown that biofilm occurs on the surface of chronic wounds and that this may have aetiological implications.Method: Staph spp and pseudomonas spp biofilm were grown on glass coupons using the CDC biofilm reactor for 48 hrs and the coupons randomly inserted into the wound model ...

Response to chronic exposure to hexavalent chromium in human monocytes.

Toxicology in Vitro — Fri, 13 Mar 2009 04:00:00 +0100

Authors: Raghunathan VK, Ellis EM, Grant MH Elevated circulating levels of metal ions, particularly chromium, have been measured in the blood of patients with metal hip implants, and this has lead to concerns about the long term safety of the prostheses. For example, depletion of lymphocytes has been reported in vivo in patients with metallic prostheses, and correlated with elevated chromium and cobalt concentrations in blood. However, the implications for immune function are unclear. We have assessed the in vitro responses of U937 human monocytes to chronic exposure (4 weeks) to Cr (VI) ions at concentrations which have been measured in patients with metal artificial hip implants (0.05 - 0.5 muM). Chronic exposure to these low clinically relevant concentrations of Cr (VI) induced a po...

Wear resistance of artificial hip joints with poly(2-methacryloyloxyethyl phosphorylcholine) grafted polyethylene: Comparisons with the effect of polyethylene cross-linking and ceramic femoral heads.

Biomaterials — Fri, 06 Mar 2009 05:00:00 +0100

We reported here that grafting with a polymer, poly(2-methacryloyloxyethyl phosphorylcholine (MPC)) (PMPC), on the PE liner surface dramatically decreased the wear production under a hip joint simulator condition. We examined that the effect of properties of both PE by cross-linking and femoral head by changing the materials on wearing properties of PE. The PMPC grafting on the liners increased hydrophilicity and decreased friction torque, regardless of the cross-linking of the PE liner or the difference in the femoral head materials. During the hip joint simulator experiments (5x10(6) cycles of loading), cross-linking caused a decrease of wear amount and a reduction of the particle size, while the femoral head materials did not affect it. The PMPC grafting abrogated the wear production, c...

Shower after swimming to avoid MRSA, scientist advise

Guardian Unlimited Science — Fri, 13 Feb 2009 20:00:00 +0100

Holidaymakers should shower after swimming in the sea to reduce their chances of picking up the superbug, MRSA, according to scientists.The warning follows one of the first major studies into dangerous microbes that bathers might encounter during a trip to the seaside. Researchers found that people who went swimming at a popular beach in Florida had more than a one-in-three chance of coming into contact with the Staphylococcus aureus microbe. A small proportion of these were the potentially life-threatening drug-resistant strain, MRSA.The bugs get into seawater when they are washed off the skin of people who may be unaware they are carrying the infection. "Staphylococcus are shed by individuals into the waters and if you do go into these waters you are likely to be exposed," said Lisa Plan...

Trekking and swimming good for artificial hips

Monsters and Critics Health News — Mon, 02 Feb 2009 03:09:34 +0100

Neu-Isenburg, Germany Trekking, Nordic walking, swimming and cycling are healthy activities for people with artificial hip joints, (Source: Monsters and Critics Health News)

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Lawmakers Considering Bundled Payments for Medicare Providers

kaisernetwork.org: Health Policy Daily Report — Fri, 30 Jan 2009 05:00:00 +0100

As congressional leaders and the administration of President Obama seek to reform the U.S. health care system, they are looking at changing the nation's approach to paying for treatment for Medicare beneficiaries, the Wall Street Journal reports. The current system functions with payments for physicians according to each procedure they perform, which critics say creates a financial incentive for unnecessary treatments. Alternatives, such as paying a fixed annual rate for each patient, also have been criticized because it could give providers "an incentive to withhold potentially helpful treatments," according to the Journal.Some lawmakers have proposed bundling payments for certain treatments that currently involve separate billable procedures, such as implanting an artificial hip or provi...

Hip Prostheses Safely Fixed

IT / Internet / E-mail News From Medical News Today — Tue, 27 Jan 2009 10:00:00 +0100

Artificial hip joints are firmly anchored to the patient's damaged bone by screws. But which parts of the bone will safely hold the screws in place? A simulation model is to calculate the strength of the bone from computer tomography images. Hip prostheses do not hold forever. If an implant comes loose, the doctors have to replace it. Most patients need this second operation after about 15 years. By then, the first prosthesis has often worn down the pelvic bone in several places. (Source: IT / Internet / E-mail News From Medical News Today)

Spine Doctors' Group To Require Disclosure of Device Maker Payments to Surgeons

kaisernetwork.org: Health Policy Daily Report — Mon, 26 Jan 2009 05:00:00 +0100

The North American Spine Society has announced a requirement that spine surgeons disclose all financial ties with medical device companies, as well as the related dollar amounts, the Wall Street Journal reports. NASS, which has more than 5,000 members, said the measure will apply to all doctors who present studies at future medical conferences. The move, a "rare step" for such an industry group, is in response to pressure from lawmakers, prosecutors and lawsuits from former employees alleging improper relationships between device firms and doctors, according to the Journal. Such relationships can involve payments to doctors that are worth "millions of dollars," the Journal reports. NASS said the rule "is not a voluntary guideline, but a binding covenant which applies to all relationships e...

Hip Replacement Patients At Possible Risk, Cleveland Law Firm Adds Zimmer Durom® Cup Lawsuit Info On SpangLaw.com

Bones / Orthopaedics News From Medical News Today — Thu, 22 Jan 2009 11:00:00 +0100

"Lawrence Dorr, a nationally known orthopedic surgeon in Los Angeles, realized last year that something was very wrong with some of his patients. - The New York Times ". After discovering an unexpected number of hip implant failures, Zimmer Inc. voluntarily recalled one of its artificial hip implants, the Zimmer Durom® Cup. (Source: Bones / Orthopaedics News From Medical News Today)

Research leads to longer-lasting hip replacements

Arthritis Research Campaign — Tue, 23 Dec 2008 05:00:00 +0100

A team of researchers in Portsmouth have found that walking up and down stairs puts the most strain on artificial hips, compared with other routine activities such as walking. (Source: Arthritis Research Campaign)

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Superlubricious surface mimicking articular cartilage by grafting poly(2-methacryloyloxyethyl phosphorylcholine) on orthopaedic metal bearings.

Biomed Res — Mon, 01 Dec 2008 05:00:00 +0100

Authors: Kyomoto M, Moro T, Iwasaki Y, Miyaji F, Kawaguchi H, Takatori Y, Nakamura K, Ishihara K Aseptic loosening of the artificial hip joint with osteolysis due to the wear particles from polyethylene cup has remained as a serious issue. To reduce this wear and develop a novel artificial hip joint system, we produced a superlubricious metal-bearing material: for this, we grafted a 2-methacryloyloxyethyl phosphorylcholine (MPC) polymer onto the surface of a cobalt-chromium-molybdenum (Co-Cr-Mo) alloy. For ensuring long-term benefit retention of poly(MPC) on the Co-Cr-Mo alloy for application as a novel artificial hip joint system, several issues must be considered: strong bonding between poly(MPC) and Co-Cr-Mo surface, high mobility of free end groups of the poly(MPC) layer, and high ...

Keeping Hips Young

Medical Headlines From Ivanhoe.com — Fri, 22 Aug 2008 05:00:00 +0100

Artificial hip replacement is a common procedure for older arthritis patients, but for those who are fifty or younger, there is one major concern. (Source: Medical Headlines From Ivanhoe.com)

Complaints Undermine Hip Device

NYT > Health — Thu, 24 Jul 2008 05:12:55 +0100

Zimmer Holdings, the nation’s biggest producer of orthopedic devices, says it will suspend sales of an artificial hip component that some doctors have complained was failing at a high rate. (Source: NYT > Health)

Happy birthday NHS!

NHS Direct News and health alerts — Fri, 04 Jul 2008 10:30:19 +0100

-The NHS turns 60 on Saturday 5 July.But it's not ready for retirement just yet. In fact the NHS is showing no signs of slowing down!Birth of the NHSThe NHS workforce is so big it rivals the size of the Chinese army!The National Health Service was introduced in 1948. It was part of a social welfare policy to help post-war Britain move forward.The basic principles of the NHS remain unchanged to this day. That is, to provide universal access to health care that is free at the point of delivery.Facts about the NHSFrom its humble beginnings back in 1948 the new National Health Service took over 480,000 hospital beds in England and Wales. A staff of 125,000 nurses and 5,000 consultants looked after patients.We now live on average 10 years longer that we would have in 1948Today 1.3 million peopl...

Cementless stem stability in dysplastic arthrosis of the hip - 12 years' experience.

Ortopedia, Traumatologia, Rehabilitacja — Wed, 18 Jun 2008 22:42:53 +0100

Conclusions In dysplastic arthrosis, in which the proximal part of the femur has a narrow canal, the intertrochanteric area is often deformed and the angle of antetorsion greatly increased, better stability and osteointegration as well as a considerable functional improvement and extension of survival time can be obtained through using the so called anatomical stem, with anteflexion and antetorsion, fitted in the intertrochanteric area of the bone. PMID: 18552762 [PubMed - as supplied by publisher] (Source: Ortopedia, Traumatologia, Rehabilitacja)

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Analysing the protective potential of padded soccer goalkeeper shorts.

British Journal of Sports Medicine — Fri, 06 Jun 2008 04:00:00 +0100

CONCLUSIONS: The quality of most of the currently available goalkeeper shorts needs to be improved in order to effectively prevent hip injury sustained in side jumps. PMID: 18539655 [PubMed - as supplied by publisher] (Source: British Journal of Sports Medicine)

That Must Be Bob. I Hear His New Hip Squeaking.

NYT > Health — Sat, 10 May 2008 23:26:11 +0100

Some patients’ noisy artificial hips are interrupting daily life and raising questions about more serious problems. (Source: NYT > Health)

Washington Times Examines Results Of Federal Investigation Into Alleged Physician Kickbacks

Medical Devices News From Medical News Today — Wed, 19 Mar 2008 17:00:00 +0100

A settlement to end a federal investigation into alleged kickbacks to U.S. physicians by five companies that manufacture artificial joints "is shining light on hundreds of agreements under which surgeons across the country receive trips, meals and consulting deals from artificial-hip and -knee makers," the Washington Times reports. (Source: Medical Devices News From Medical News Today)

Washington Times Examines Results of Federal Investigation Into Alleged Physician Kickbacks

kaisernetwork.org: Health Policy Daily Report — Tue, 18 Mar 2008 05:00:00 +0100

A settlement to end a federal investigation into alleged kickbacks to U.S. physicians by five companies that manufacture artificial joints "is shining light on hundreds of agreements under which surgeons across the country receive trips, meals and consulting deals from artificial-hip and -knee makers," the Washington Times reports. According to federal officials, four... (Source: kaisernetwork.org: Health Policy Daily Report)

Four Medical Device Companies Made $800M In Illegitimate Payments To Physicians Over Four Years, HHS OIG Official Says

Medical Devices News From Medical News Today — Fri, 29 Feb 2008 14:00:00 +0100

Four companies that manufacture artificial hips and knees paid physicians more than $800 million in royalties and fees over four years to influence them to use their products, Gregory Demske, assistant inspector general of legal Affairs at the HHS Office of Inspector General said during a Senate Special Committee on Aging hearing on Wednesday, (Source: Medical Devices News From Medical News Today)

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Orthopedic-Device Makers Accused of Paying Doctors

washingtonpost.com - Health — Thu, 28 Feb 2008 05:00:00 +0100

Four makers of artificial hips and knees paid doctors more than $800 million in royalties and fees in four years to influence their choice of implants, a U.S. investigator told Congress. (Source: washingtonpost.com - Health)

Four Medical Device Companies Made $800M in Illegitimate Payments to Physicians Over Four Years, HHS OIG Official Says

kaisernetwork.org: Health Policy Daily Report — Thu, 28 Feb 2008 05:00:00 +0100

Senate panel probes medical device companies

Reuters: Health — Tue, 26 Feb 2008 23:55:04 +0100

WASHINGTON (Reuters) - Medical device companies will come under scrutiny on Wednesday when a U.S. Senate committee probes financial payments to doctors which some say are aimed at creating loyalty for products like artificial hips and knees. (Source: Reuters: Health)

Society For Biomaterials History Summit Convenes To Record The History Of Medical Inventions

Medical Devices News From Medical News Today — Wed, 20 Feb 2008 12:00:00 +0100

If you have contact lenses, an artificial hip joint, a dental implant, a mechanical heart valve or just about any medical device in your body, you can thank a bioengineer.The society's founders and past presidents, an international group, are gathering to commemorate the contributions of bioengineers that have benefited so many since the 1960s, Clemson University hosts the Society for Biomaterials (SFB) History Summit Feb. 20-22 at the Madren Center. (Source: Medical Devices News From Medical News Today)

World-renowned bioengineers to record history of medical inventions

EurekAlert! - Medicine and Health — Tue, 19 Feb 2008 05:00:00 +0100

If you have contact lenses, an artificial hip joint, a dental implant, a mechanical heart valve or just about any medical device in your body, you can thank a bioengineer. To commemorate the contributions of bioengineers Clemson University hosts the Society for Biomaterials History Summit Feb. 20-22. The society's founders and past presidents will record an audio history of the origins of bioengineering inventions and devices from the last four decades. (Source: EurekAlert! - Medicine and Health)

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I'll never need new hips - my joints are lined with metal

the Mail online | Health — Wed, 06 Feb 2008 08:20:40 +0100

Artificial hip joints usually last around ten years then need replacing. With the new hip 'resurfacing' technique, the original joint can be repaired and last a lifetime. Rex Taylor, 45, a vulcanologist from Lyndhurst, near Southampton, has had both hips resurfaced. Here, he describes his experience to THEA JOURDAN, while his surgeon explains the procedure (Source: the Mail online | Health)

Stryker Recalls Some Artificial Hip Devices

Medscape Business of Medicine Headlines — Wed, 23 Jan 2008 19:47:48 +0100

Stryker Corp said on Tuesday it is recalling some artificial hip products made at its Cork, Ireland, facility because the devices did not meet company manufacturing standards. Reuters Health Information (Source: Medscape Business of Medicine Headlines)

Transtrochanteric approach to the hip

Interactive Surgery — Fri, 04 Jan 2008 19:51:47 +0100

Abstract Once routinely used, trochanteric osteotomy in total hip arthroplasty now is usually limited to difficult primary and revision cases. Many variations of the osteotomy and many various techniques for the trochanter reattachment have been described. Our specific surgical technique is presented as well as its advantages and drawbacks. Primary total hip arthroplasty procedures requiring the enhanced exposure provided by trochanteric osteotomy is needed in patients with hip ankylosis or fusion, protrusio acetabuli, proximal femoral deformities, developmental dysplasia, or abductor muscle laxity. Trochanteric osteotomy, in revision arthroplasties, facilitates the removal of well-fixed femoral components and enhance acetabular exposure. In all cases trochanteric osteotomy ...

Medical Plastics Industry On The Rebound

ScienceDaily Headlines — Wed, 07 Nov 2007 12:49:31 +0100

In the wake of Dow Corning's bankrupting experience with silicone gel breast implants, the medical plastics industry is now undergoing a renaissance. Medical plastics are a $1 billion a year market and demand is growing at 10 to 20 percent a year. Driving this growth are the demands of an aging population for implantable medical devices, such as artificial hips and knees, according to a new article. (Source: ScienceDaily Headlines)

Range of motion measurement of an artificial hip joint using CT images

Medical and Biological Engineering and Computing — Thu, 27 Sep 2007 15:50:20 +0100

In this study, a new method for evaluating ROM of internal/external rotation, which takes into account all combinations of contacts between the bones and components, was proposed. A computer simulation demonstrated that the RMS error of the proposed method was approximately 3�. The method was applied to 33 THAs under various conditions of flexion and adduction angles. The method was able to detect any type of impingement. The evaluated ROM was in good agreement with that measured during the THA operation (correlation coefficient = 0.91). Content Type Journal ArticleCategory Original ArticleDOI 10.1007/s11517-007-0258-yAuthors Haosheng Sun, Tokyo Medical and Dental University Department of Rehabilitation Medicine, Graduate School Tokyo JapanHidenori Inaoka, Tokyo Medica...

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Potential New Class Of Orthopaedic Implants Using Bone-Growing Nanomaterial

Bones / Orthopaedics News From Medical News Today — Wed, 19 Sep 2007 08:00:00 +0100

For orthopaedic implants to be successful, bone must meld to the metal that these artificial hips, knees and shoulders are made of. A team of Brown University engineers, led by Thomas Webster, has discovered a new material that could significantly increase this success rate.The team took titanium -- the most popular implant material around -- and chemically treated it and applied an electrical current to it. [click link for full article] (Source: Bones / Orthopaedics News From Medical News Today)

Engineers Develop Way Of Detecting Problems With Artificial Hip Joints

ScienceDaily Headlines — Tue, 07 Aug 2007 09:00:00 +0100

A more efficient way of detecting loosened artificial hip implants, which affect thousands of people every year, has been developed. Engineers have developed a diagnostic test which measures the frequency of sound produced when the femur bone in the leg is vibrated. (Source: ScienceDaily Headlines)

Diagnostic Uiltrasound Test Developed By UK Engineers To Detect Problems With Artificial Hip Joints

Bones / Orthopaedics News From Medical News Today — Mon, 06 Aug 2007 23:00:00 +0100

A more efficient way of detecting loosened artificial hip implants, which affect thousands of people every year, has been developed.Engineers at the University of Bath have developed a diagnostic test which measures the frequency of sound produced when the femur bone in the leg is vibrated. [click link for full article] (Source: Bones / Orthopaedics News From Medical News Today)

Engineers develop way of detecting problems with artificial hip joints

EurekAlert! - Biology — Thu, 02 Aug 2007 04:00:00 +0100

A more efficient way of detecting loosened artificial hip implants, which affect thousands of people every year, has been developed. Engineers at the University of Bath have developed a diagnostic test which measures the frequency of sound produced when the femur bone in the leg is vibrated. (Source: EurekAlert! - Biology)

Consumer Information on: Cormet Hip Resurfacing System - P050016

CDRH Consumer News — Fri, 27 Jul 2007 04:00:00 +0100

The Cormet Hip Resurfacing System is a metal on metal resurfacing artificial hip replacement system, surgically implanted to replace a hip joint. The Cormet System is called a resurfacing prosthesis because only the surface of the femoral head (ball)... (Source: CDRH Consumer News)

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Cormet Hip Resurfacing System

Medical Device Approvals — Fri, 27 Jul 2007 04:00:00 +0100

Summary Information for: NOVATION™ Ceramic Articulation Hip System

Food and Drug Adminstration (FDA): CDRHNew — Fri, 20 Jul 2007 04:00:00 +0100

TheNOVATION™ Ceramic Articulation Hip System is an alumina ceramic artificial hip replacement system, surgically implanted to completely replace a diseased or damaged hip joint... (Source: Food and Drug Adminstration (FDA): CDRHNew)

Consumer Information on: NOVATION™ Ceramic Articulation Hip System - P050039

CDRH Consumer News — Mon, 09 Jul 2007 04:00:00 +0100

The NOVATION™ Ceramic Articulation Hip System is an alumina ceramic artificial hip replacement system, surgically implanted to completely replace a diseased or damaged hip joint. (Source: CDRH Consumer News)

NOVATION™ Ceramic Articulation Hip System

Medical Device Approvals — Mon, 09 Jul 2007 04:00:00 +0100

The NOVATION™ Ceramic Articulation Hip System is an alumina ceramic artificial hip replacement system, surgically implanted to completely replace a diseased or damaged hip joint. (Approved: 7/5/2007) (Source: Medical Device Approvals)

[Negative results - Cardic general] ICVTS on-line discussion A Debonding of artificial hip joint

Interactive CardioVascular and Thoracic Surgery — Wed, 21 Mar 2007 04:00:00 +0100

(Source: Interactive CardioVascular and Thoracic Surgery)

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Hip-surgery success may depend on genes

United Press International - Consumer Health — Fri, 16 Mar 2007 02:48:00 +0100

The success of long-term artificial hip-replacement surgery may depend on a person's genes, suggests a study by the University of Manchester in England. ... (Source: United Press International - Consumer Health)

Genes Can Predict Hip Replacement Success

Dr. Koop News Articles — Thu, 15 Mar 2007 04:00:00 +0100

Finding may lead to new treatments and better artificial hips, experts say. (Source: Dr. Koop News Articles)

Biomet Accepts $10.9 Billion Buyout Offer

Joomla! powered Site — Sun, 31 Dec 2006 11:45:19 +0100

Biomet, a major manufacturer of artificial hips and knees, said on December 18th that it had agreed to a $10.9 billion buyout offer from a private investment consortium. The bid came from affiliates of the Blackstone Group, Goldman Sachs Capital Partners, Kohlberg Kravis Roberts Company and the Texas Pacific Group. Biomet said the private investment group was also expected to include Dane A. Miller, a co-founder of Biomet in 1977 and its longtime chief executive until he resigned in April, citing disagreements with the board. (Source: Joomla! powered Site)

Preventing Slimy Biofilms

Medgadget — Mon, 11 Sep 2006 16:54:47 +0100

The American Chemical Society is reporting that investigators at the Montana State University believe that coating implantable medgadgets with chitosan -- a sugar found in the cells of crabs and shrimps -- can prevent implant infections: The preliminary finding, by Philip Stewart, Ph.D., director of MSU's Center for Biofilm Engineering, and Ross Carlson, Ph.D., assistant professor of chemical engineering, was described today at the 232nd national meeting of the American Chemical Society, the world's largest scientific society. In their laboratory studies, chitosan - a sugar in the cells of crabs and shrimp - repelled bacteria and yeast, effectively preventing these microbes from forming slimy, glue-like layers of infectious cells, known as biofilms, Stewart said. These biofilms account for...

Consumer Information on: Trilogy AB Acetabular System - P040048

Food and Drug Adminstration (FDA): CDRHNew — Fri, 30 Jun 2006 04:00:00 +0100

The Trilogy AB Acetabular System is a ceramic on ceramic artificial hip replacement system, surgically implanted to completely replace a hip joint. (Source: Food and Drug Adminstration (FDA): CDRHNew)

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Trilogy AB Acetabular System

Medical Device Approvals — Fri, 30 Jun 2006 04:00:00 +0100

The Trilogy AB Acetabular System is a ceramic on ceramic artificial hip replacement system, surgically implanted to completely replace a hip joint. (Approved: 6/28/2006) (Source: Medical Device Approvals)

Special Mill Cuts Titanium Faster

Articles from MedicalDesign.com — Wed, 21 Jun 2006 07:57:58 +0100

Machining a titanium synovial cavity for an artificial hip joint took Stryker Orthopedics in Ireland (stryker.com) 13.4 min/piece using a lathe and milling machine. (Source: Articles from MedicalDesign.com)

No difference in early cellular response of the pseudo-synovial membrane after total hip arthroplasty: comparison of 3 combinations of bearing materials.

Acta Orthopaedica — Wed, 14 Jun 2006 06:00:00 +0100

Authors: Nygaard M, Elling F, Bastholm L, Søballe K, Borgwardt A BACKGROUND: Wear-resistant bearing materials may hypothetically reduce chronic inflammation in the pseudosynovial membrane as compared to less wear-resistant bearing materials such as polyethylene. We assessed the foreign body response in the pseudosynovial membrane in vivo after total hip replacement. METHODS: 37 patients from a larger prospective randomized trial of 225 patients had biopsies taken arthroscopically from the artificial hip joint (i.e. the pseudosynovial membrane) 1 year after insertion of the implant. All patients had an identical hip prosthesis (Bimetric-RingLoc) except for the bearing materials, which consisted of polyethylene on zirconia, CoCr on CoCr, or alumina on alumina. Histological quantificatio...

Stelkast Supass™ Acetabular System

Medical Device Approvals — Mon, 15 May 2006 04:00:00 +0100

The Stelkast Surpass™ Acetabular System is a ceramic on ceramic artificial hip replacement system, surgically implanted to completely replace a hip joint. (Approved: 5/12/2006) (Source: Medical Device Approvals)

Consumer Information on: Stelkast Supass™ Acetabular System

Food and Drug Adminstration (FDA): CDRHNew — Mon, 15 May 2006 04:00:00 +0100

The Stelkast Surpass™ Acetabular System is a ceramic on ceramic artificial hip replacement system, surgically implanted to completely replace a hip joint. (Source: Food and Drug Adminstration (FDA): CDRHNew)

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Birmingham Hip Resurfacing (BHR) System

Medical Device Approvals — Tue, 09 May 2006 04:00:00 +0100

The Birmingham Hip Resurfacing (BHR) System is a metal on metal resurfacing artificial hip replacement system, surgically implanted to replace a hip joint. The BHR is called a resurfacing prosthesis because only the surface of the femoral head (ball) is.. (Approved: 5/9/2006) (Source: Medical Device Approvals)

Consumer Information on: Birmingham Hip Resurfacing (BHR) System

Food and Drug Adminstration (FDA): CDRHNew — Tue, 09 May 2006 04:00:00 +0100

The Birmingham Hip Resurfacing (BHR) System is a metal on metal resurfacing artificial hip replacement system, surgically implanted to replace a hip joint. The BHR is called a resurfacing prosthesis because only the surface of the femoral head (ball) is.. (Source: Food and Drug Adminstration (FDA): CDRHNew)

C2a ? Taper™ Acetabular System

Medical Device Approvals — Mon, 19 Dec 2005 05:00:00 +0100

This device is is a ceramic on ceramic artificial hip replacement system, surgically implanted to completely replace a hip joint. (Approved: 12/16/2005) (Source: Medical Device Approvals)