MANCHESTER Researchers reported that adverse soft tissue reactions following metal-on-metal hip arthroplasty are typically due to increased wear of the bearing surfaces, and patients with smaller femoral heads may be particularly susceptible to these complications.
The hum of machines is ubiquitous in the Smith & Nephew factory, where the floor is divided into "cells" the size of small rooms, each a self-contained assembly line making a particular part. Workers in a cell transform a dull-gray metal piece, cast at another facility, into a gleaming, perfectly shaped finished product, measured to an accuracy of a few microns.
NEW ORLEANS High-volume surgeons are more likely than low-volume surgeons to attain optimal cup positioning for total hip arthroplasty, but both groups still attain optimal cup positioning less than half of the time, according to a study presented here.
A unit of Johnson & Johnson, just months after saying it was phasing out an artificial hip implant because of slowing sales, has warned doctors that the device appears to have a high early failure rate in some patients.
Some of the nation™s leading orthopedic surgeons have reduced or stopped use of a popular category of artificial hips amid concerns that the devices are causing severe tissue and bone damage in some patients, often requiring replacement surgery within a year or two.
Although hip resurfacing is becoming a popular option for surgeons treating young and active patients, the procedure carries a higher short-term failure rate than total hip arthroplasty, according to a New York surgeon.
Orthopedic surgeons experienced in hip resurfacing know that performing the procedure correctly is associated with a fairly steep learning curve. To help minimize that curve, a surgeon speaking at Orthopedics Today Hawaii 2010 discussed how his resurfacing results improved over time.
Femoral neck fractures dramatic failure for patient and surgeons a technique-related complication that must be surmounted.
The Conserve Plus Total Hip Resurfacing System, manufactured by Wright Medical Group Inc., Arlington, Tenn., has been cleared for marketing by the U.S. Food and Drug Administration (FDA), the company announced yesterday.
Dr. William B. Macaulay Jr. is one of this country™s leading practitioners of hip resurfacing. Since it is not any easier on a patient than a total replacement, he says a patient should have pain every day before even thinking about it.
The doctrine of informed consent continues to stir debate among physicians, ethicists, and courts. The origins of informed consent derive from the common law tort of battery, which is defined as the intentional harmful or offensive contact to another.
This study compared gait kinematics of resurfacing patients to normal hips, osteoarthritic hips, and patients with standard hip replacements. Metal-on-metal resurfacing is a type of hip arthroplasty in which there is conservation of the proximal femur. Little is known about the functional capabilities of patients with resurfacing. This study compared gait parameters of resurfacing patients with normal and osteoarthritic hip patients as well as those with standard hip replacements