HOME >> MEDICINE >> NEWS
Bone Cement Used In Total Hip Replacements Slowly Degrades In Body Over Time, According To UCSF Study

A new study led by UC San Francisco researchers has found that acrylic bone cement, often used to attach total hip replacements to bone, degrades in the body over time and this, says researchers, may contribute to the loosening in cemented total hip replacements.

"This is the first study that shows there is a chemical breakdown in the structure of the cement," said Michael Ries, MD, lead investigator of the study, UCSF associate professor of orthopaedic surgery, and orthopaedic surgeon at the UCSF Arthroplasty Center, part of UCSF Stanford Health Care. "The findings can be used to improve the longevity of cemented total hip replacements."

Ries and research colleagues presented study findings on February 4 at the annual meeting of the American Academy of Orthopaedic Surgeons in Anaheim, CA.

A total hip replacement is a successful treatment for arthritis in the hip, said Ries. If severe arthritis is treated without surgery, often the pain can be so great that walking is no longer possible and a wheelchair is the only option for mobility, he added.

In a total hip replacement, the hip joint is replaced with a metal ball attached to a metal stem fitted into the upper portion of the thigh bone and a plastic socket is implanted into the pelvis, replacing the damaged socket. Approximately 50 to 60 percent of total hip replacements use cement to anchor the ball and socket into the bone, according to Ries.

One possible complication of a total hip replacement, he said, is the metal ball and plastic socket may become loose, resulting in pain. If loosening is significant, a revision of the joint replacement may be needed. About 90 percent of hip replacements last 10 years and 80 percent last 20 years. In the current study, Ries and research colleagues studied the chemical structure of bone cement used in hip replacements -- polymethylmethacrylate (PMMA) -- after it had been in the body to determine the effects of the body's environment on PMMA
'"/>

Contact: Lordelyn P. del Rosario
lordlyn@itsa.ucsf.edu
415-476-2557
University of California - San Francisco
8-Feb-1999


Page: 1 2

Related medicine news :

1. NIH convenes Consensus Development Conference on Total Knee Replacement
2. Totality of evidence shows aspirin reduces risk of a first heart attack by one-third
3. Depression-treating drugs lead record-setting pharmacy benefit cost rise -- Total increase lower when pharmacy benefit actively managed
4. Time, trust key to successful teen-doctor relationship
5. Personality, Thought To Be Stable Over Time, Changes In Healthy People Who Take A Widely Used Anti-Depressant
6. Intravenous Immunoglobulin Reduces Steroid Insensitivity, Hospitalizations Of People With Severe Asthma, According To National Jewish Research
7. Rigorous Evaluation Of "Hospitalist" Model Needed To Determine Impact Of This New Medical Specialty, According To UCSF Health Policy Researchers
8. Altered Brain Chemistry In Bulimia Nervosa Patients Persists After Recovery, According To UPMC Researchers
9. Botox Treats Excessive Sweating, According To UCSF Study
10. Most Comprehensive Study Of Its Kind Shows Common Asthma Medications Dont Cause Behavioral Problems In Children, According To The Journal Pediatrics
11. Study of energy and health in Africa focuses spotlight on charcoal and forest management

Post Your Comments:
*Name:
*Comment:
*Email:


(Date:12/6/2019)... ... ... TIME For Kids (TFK) revealed the first-ever list of the ... destinations that are tailored to the interests of kids. The list identifies The Children’s ... list, TIME for Kids gathered nominations from its network of TFK Kid Reporters ...
(Date:12/5/2019)... ... December 05, 2019 , ... Abide, the #1 Christian meditation and sleep ... year using Bible-based bedtime stories. Listeners have recovered from bad dreams and night terrors, ... for Disease Control, one third of Americans suffer from poor sleep, which is linked ...
(Date:12/5/2019)... ... December 05, 2019 , ... It’s been an impactful year ... help people embrace, achieve, and maintain a healthy lifestyle to giving generously to ... our mission of impacting world health, so it’s gratifying to look back on ...
(Date:12/4/2019)... ... December 04, 2019 , ... ... Extract®, provides protection from disruptions to cells and tissue and inflammation that leads ... Jet Lag, is available in a dietary supplement product called Prepair™ . ...
(Date:12/4/2019)... ... 2019 , ... While the holidays are a time for joy and sharing, ... AgriLife Extension Service specialists. , “There are many behavioral and logistical ... wellness,” said Joyce Cavanagh, AgriLife Extension specialist in family economics, College Station. , Prioritize ...
Breaking Medicine News(10 mins):
(Date:12/5/2019)... ... December 05, 2019 , ... nView, a leading behavioral ... the role of Chief Product Officer. As the company expands its portfolio of ... the behavioral health market into nView’s product and company growth strategy. Rosenbaum will ...
(Date:12/4/2019)... ... December 04, 2019 , ... Tenex ... minimally invasive technologies to treat chronic pain in soft and hard tissue, recently ... TX® technology. , Dr. Bernard Morrey, Chief Medical Officer of Tenex ...
(Date:12/4/2019)... ... December 04, 2019 , ... HGE Health, ... COPD patient’s symptoms, joined forces nearly a year ago with RespirCare, an operator ... care at times when the attention is most needed. The patient-satisfaction scores ...
Breaking Medicine Technology:
Cached News: