Navigation Links
Surgeons Often Are Blamed When Hip Replacements Fail

Consumers urged to pay more attention to choosing the doctor, not the device

FRIDAY, Jan. 2 (HealthDay News) -- Though viewed as a safe and long-lasting way to alleviate hip-related pain, hip-replacement surgery isn't foolproof. And when the procedure fails, the problem more often lies with surgical error than a prosthetic design flaw, a new survey found.

Dislocation of the implant was the most common cause for hip-replacement failure, followed by a loosening of the implant and infections -- such as staph -- that struck either during surgery or later on, the survey said.

"We certainly don't want to give the public the alarming concern that hip-replacement failures are on the rise," said the study's lead author, Dr. Kevin Bozic, an associate professor of orthopedic surgery and health policy at the University of California, San Francisco. "That's not at all what this shows. It's just a single snapshot in time."

"Yet this study is the first to give us information from a very big national database on the cause of failure in a large population, which we didn't previously have," he added. "And what it does suggest is that when hip replacement does fail, the weak link is not the wearing out of the bearing surface, but other problems that in large part are probably related more to the surgical technique used rather than the implant device itself."

Bozic, who's a member of the board of directors of the American Academy of Orthopaedic Surgeons, reported his team's findings in the January issue of The Journal of Bone and Joint Surgery.

The findings could have important ramifications, given that hip replacement is very common in the United States, Bozic said.

"Together with knee-replacement surgery, it's one of the three most common operations," he said. "And the frequency is increasing dramatically because of a number of factors, including an aging population, people having it done at a younger age, and new and improved technology and techniques."

To assess the leading causes of hip-replacement failure, the study authors analyzed a nationwide hospital survey conducted between October 2005 and December 2006. The survey included data on all hip-replacement surgery revisions that were performed after initial hip-surgery failure.

Because the data was the first to be collected under a newly implemented and more detailed diagnostic and procedural coding system for hip replacements, Bozic and his colleagues were better equipped than previous researchers to identify apparent failure trends.

The survey identified more than 51,000 hip-revision surgeries.

Bozic and his colleagues found that the most common cause for the most common type of hip-revision surgery -- known as "total hip arthroplasty" -- was instability or dislocation of the initial hip device, which accounted for approximately 23 percent of cases. "Mechanical loosening" of the device caused nearly 20 percent of the revisions, and another 15 percent was attributed to infection.

"So the message is simple," Bozic said. "We found that there are causes of hip-replacement failure that we hadn't believed were the most common causes but that we now know are significant concerns and should be investigated further."

Dr. Jay Mabrey, chief of orthopedic surgery at Baylor University Medical Center in Dallas, was very enthusiastic about Bozic's study.

"Bozic is a kind of orthopedic genius, and this is a fantastic study," Mabrey said. "It's about time that someone went about proving that technique is more important than the prosthesis itself. It's something that those of us who do a lot of hip and knee replacements have known for quite a while. But no one's ever done anything like this before."

The bottom line, Mabrey said, is that "as a consumer you really should be concerned more with the surgeon who is going to put in the replacement and less concerned with which implant is being put in."

More information

To learn more about hip replacements, visit the U.S. National Institute of Arthritis and Musculoskeletal and Skin Diseases.

SOURCES: Kevin Bozic, M.D., M.B.A., associate professor of orthopedic surgery and health policy, University of California, San Francisco, and member, board of directors, American Academy of Orthopaedic Surgeons; Jay Mabrey, M.D., chief of orthopedic surgery, Baylor University Medical Center, Dallas; January 2009, The Journal of Bone and Joint Surgery

Copyright©2009 ScoutNews,LLC.
All rights reserved

Related medicine news :

1. Surgeons Predict Foot Pain Will Increase in January
2. U.S. May Soon Face Shortage of General Surgeons
3. Hair Transplant Surgeons Author Hair Loss for Dummies Book
4. American College of Surgeons Issues New Health Care Reform Agenda, Emphasizes Need to Address Access, Surgical Workforce Shortage
5. American College of Surgeons Comments on Institute of Medicine Report on Resident Duty Hours
6. STAAR Surgical Forms Team of Leading Ophthalmic Surgeons to Study the Use of Collamer(R) Material for Accommodating Intraocular Lenses
7. New Orthopedic Oncology Fellowship Program at Mount Clemens Brings Highly Trained Surgeons to State
8. Pediatric Heart Surgeons May Be Best Choice for Adults
9. Dr. Tiffany McCormack in Reno, Nevada Named in Forbes Magazine as One of 10 Most Dependable Plastic Surgeons in the West
10. Two Colorado Surgeons Become Pioneers In Microsurgical DIEP Flap Breast Reconstruction
11. Henry C. Windell, DMD, Elected to Board of Trustees of the American Association of Oral and Maxillofacial Surgeons
Post Your Comments:
(Date:10/13/2015)... ... October 13, 2015 , ... CURE Media Group, ... announced a new partnership with the International Waldenstrom’s Macroglobulinemia Foundation (IWMF) ... lymphoma, their families and physicians. , “Waldenstrom’s Macroglobulinemia is a so-called ‘orphan ...
(Date:10/13/2015)... (PRWEB) , ... October 13, 2015 , ... ... beverage companies in the United States, today announced the release of its limited ... and new Cranberry Cocktail Agua Fresca. All feature the unique flavor combinations and ...
(Date:10/13/2015)... ... October 13, 2015 , ... HealthAware , ... HIMSS’s Patient Engagement Summit . HealthAware is a technology company focused on ... and interventions via mobile devices that provide a framework for the development of ...
(Date:10/13/2015)... ... 2015 , ... ProText Kinetic Panel is a typography creation tool made for ... create energetic text animations in any layout without the use of keyframes. Using ProText ... and stylize the text. With intuitive on-screen controls, users can re-position and scale the ...
(Date:10/13/2015)... ... October 13, 2015 , ... Symposium Chairman, Dr. Rod J. ... Dallas Cosmetic Symposium to be held March 2nd and 3rd, 2016. The annual meeting, ... plastic surgeons and cosmetic physicians from around the world. , Key topics at this ...
Breaking Medicine News(10 mins):
(Date:10/13/2015)... COLLEGE PARK, Md. , Oct. 13, 2015 ... hubs is the biggest key to growing Baltimore ... to a report released today by the Maryland Technology ... already has many of the pieces in place to support ... Martha Connolly , director of Mtech Baltimore. "This study is ...
(Date:10/13/2015)... 2015 WuXi PharmaTech (Cayman) Inc. (NYSE: ... company serving the pharmaceutical, biotechnology, and medical device ... mobile version of OncoWuXi, the first App in ... models and data on the go.  The OncoWuXi ... time to identify relevant tumor models for use ...
(Date:10/13/2015)... Oct. 13, 2015 Health Gorilla ( ) ... Network – a secure platform for clinical data and ... interact about and manage healthcare in the US. The launch ... for a combined total of $4.4M raised to date, with ... True Ventures , Harris Barton , Orfin ...
Breaking Medicine Technology: