Head center instrument and method of using the same
Number of patents in Portfolio can not be more than 2000
United States of America Patent
Stats
-
Jul 10, 2001
Grant Date -
N/A
app pub date -
Jun 2, 2000
filing date -
Jun 2, 2000
priority date (Note) -
Expired
status (Latency Note)
Importance
Abstract
An orthopaedic instrument for comparing post-surgical joint geometry to pre-surgical joint geometry. The instrument has a head chuck which can be secured to the ball of a ball joint, and an arm having reference indicia thereon. Markings indicative of the pre-surgical joint geometry are made on the bone with reference to the center of the ball. After replacement with a prosthetic ball, the post-operative geometry is verified by securing the head chuck to the prosthetic ball, and comparing the location of the bone markings against the reference indicia on the arm. As needed, adjustments are made in the prosthetic components.
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