Non-spherical articulating surfaces in shoulder and hip replacement
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United States of America Patent
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Sep 6, 2016
Grant Date -
Sep 27, 2007
app pub date -
Mar 21, 2007
filing date -
Mar 21, 2006
priority date (Note) -
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Abstract
An orthopedic device and method of use are provided that incorporate complex, non-spherical articulating surfaces to allow a greater available range of motion compared with existing artificial shoulder joint and artificial hip joints. According to some embodiments, complex, non-spherical articulating surfaces can be incorporated on a humeral head and/or glenoid of a shoulder prosthesis. In other embodiments, complex, non-spherical articulating surfaces can be incorporated on the acetabulum and/or femoral head of a hip prosthesis. These non-spherical surfaces can be used to adjust constraint, joint thickness, soft tissue tension, moment and arc of motion, and in doing so, influence motion.
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