Monday, September 19, 2011

Harris Hip Score Used To Evaluate Zimmer Hip Problems

Patients who have been implanted with a Zimmer hip replacement system have, since 2006, faced hurdles in recovery. The problems include: unexplained hip pain more than three months after hip replacement, loosening of their artificial hip implant and hip replacement revision surgery. Potential lawsuits are being investigated on behalf of individuals who have experienced issues with the Zimmer Durom Cup.  Doctors have reported a number of problems with the artificial hip replacement component, which have resulted in the need for additional surgeries for many patients. When talking with your physician about problems with your hip replacement, they will present you with a series of questions known as the Harris Hip Score. The questions will center around the subjects of: pain, support, distance walked, limp, stairs, sitting, etc.

Although the Harris hip score frequently is used to assess the outcome of total hip replacement, only a few minor validity tests have been presented. The aim of this study was to perform a validity test of the Harris hip score and to test its reliability.  The Harris hip score can be used by a physician or a physiotherapist to study the clinical outcome of hip replacement. Most validity tests show the Harris Hip Score to be a good indicator of a successful hip replacement, but not everyone responds to issues with their hip replacements the same way. Those who are rated between “fair” and “poor” according to their score, may be entitled to and wish to seek damages due to a defective Zimmer hip replacement.

In April 2008, prominent Los Angeles orthopedic surgeon, Dr. Larry Dorr, notified members of the American Association of Hip and Knee Surgeons about the Zimmer Durom Cup problems he was encountering with patients who received the component. In July 2008, the manufacturer decided to suspend U.S. sales of the product, but a Zimmer Durom Cup recall was not issued since they did not uncover evidence of any manufacturing defect or design defect. Over 12,000 people in the United States have had a Zimmer Durom Cup implanted during their hip replacement surgery.  Hundreds of these people could experience loosening of the component and the need for additional surgeries

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