The multi-site study, performed by orthopedic surgeons practicing at nine Canadian academic centers, showed that three years after surgery, 99.91 percent of their 3,400 hip resurfacing patients experienced no implant failure due to metal wear debris. The BHR Hip was the most used resurfacing device in this study, according to the release.
The new study supports the findings of other research into the effectiveness and safety of the BHR system, including:
- A study published in January’s Journal of Bone and Joint Surgery, tracking 155 consecutive BHR patients over three years, which showed no revisions of BHR Hips due to metal wear compared to a competing metal-on-metal resurfacing device that was revised within three years of surgery at a rate of 3.4-percent due to adverse tissue reactions.
- The Australian Orthopaedic Association’s 2008 National Joint Replacement Registry tracked 6,773 BHR hips and found that less than one-third of one-percent may have been revised due to the patient’s reaction to the metal component.
- Great Britain’s Oswestry Outcomes Centre’s patient registry, which tracked 5,000 BHR hips implanted by 148 different surgeons in 37 countries over 10 years (1998-2008), reports that the BHR hip remains successful in 95.4-percent of all patient segments 10 years after surgery.
To explain the patient advantages seen consistently in the literature, surgeons indicate the key differences between the BHR hip and other resurfacing devices are its metal composition, its design geometry and its surgical instrumentation.
Read the Smith & Nephew release on the BHR system.
