Joint Replacement Institute Receives Prestigious Award for Study on Hip Replacement Research

Pivotal research into age-related wear of total hip replacement implants, performed by a research team at the Joint Replacement Institute, has won The Hip Society’s prestigious Frank Stinchfield Award.

Online PR News – 05-February-2012 – – JOINT REPLACEMENT INSTITUTE RECEIVES PRESTIGIOUS AWARD FOR STUDY ON HIP REPLACEMENT RESEARCH

Findings Help Predict Longevity of Hip Implants

LOS ANGELES, Calif. (February 1, 2012) – Pivotal research into age-related wear of total hip replacement implants, performed by a research team at the Joint Replacement Institute, has won The Hip Society’s prestigious Frank Stinchfield Award.
The study was led by medical student Andrew Battenberg during his rotation at the Joint Replacement Institute (JRI) last year, under the direction of preceptor Thomas P. Schmalzried, MD, medical director of the JRI. Research findings were gathered by affixing computerized two-dimensional accelerometers on the ankles of hip replacement patients to measure their walking mechanics. Like a highly evolved pedometer, the accelerometers measure movement remotely, based on the principle popularized by the cardiology holter monitor.
The award for the research paper, “Cross-linked Polyethylene: Life Tested 13 Years and 37 Million Cycles,” will be presented at the American Academy of Orthopaedic Surgeons (AAOS) conference in San Francisco on Feb. 11. Lead author Battenberg, his preceptor Dr. Schmalzried, and co-authors Jeffrey S. Hopkins, MD and Andrew D. Kupiec will be invited to receive the Stinchfield research award.
Dr. Schmalzried described Andrew Battenberg as “gold” among medical students who apply for rotations at the JRI every year. Andrew performed a thorough, time-intensive study of hip replacement patients, measuring both patients’ movement with the accelerometers and analyzing X-ray images of their implants. Findings indicate that, as people age, their level of activity decreases and, proportionally, so too does the wear on their implants.
“Like a set of tires on a car, we would suspect that mileage declines year over year and so does the wear on the tread,” said Dr. Schmalzried.
The JRI group’s study manuscript will now be processed by Clinical Orthopaedic and Related Research and readied for publication in about a year.
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About the Joint Replacement Institute and St. Vincent Medical Center
The Joint Replacement Institute is a clinic of St. Vincent Medical Center, located at 2200 W. 3rd St., Suite 400, across the 3rd Street bridge from the hospital. The JRI has been performing research and treating patients since 1991 and moved to St. Vincent Medical Center in 2008.
With three consecutive years of awards for quality healthcare services from the Centers for Medicare & Medicaid Services (CMS), St. Vincent Medical Center has been ranked fifth among Best Hospitals in the Los Angeles Metropolitan area for 2011-2012, according to U.S. News & World Report.
Providing compassionate healthcare and serving the sick poor has been the mission of St. Vincent Medical Center for more than 155 years. Located in downtown Los Angeles, St. Vincent is a world-renowned, 366-bed facility, offering comprehensive medical services, including ear surgery and neurosurgery, general orthopaedics, spine care, and joint replacement, cancer treatment, cardiovascular services, thoracic surgery, electrophysiology, interventional cardiology, and multi-organ transplantation.

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Contact Information
Sharon Greengold
St. Vincent Medical Center
2131 W. 3rd St.
Los Angeles California, 90057

(213) 484-5593