Steven Ludwig,William J. Frasier,Michael Mahoney,Nicholas Pavento
申请号：
US11897571
公开号：
US08894690B2
申请日:
2007.08.31
申请国别(地区):
US
年份:
2014
代理人:
摘要：
A bone anchor assembly for coupling an offset bone anchor with a previously inserted spinal fixation element and method of use is provided. Exemplary embodiments of a bone anchor assembly are particularly suited for use in a rod-first spinal surgical technique in which a bone anchor inserted into a patient vertebra may be separated from a previously inserted spinal fixation element by a separation distance.
