Interference screw and cannulated sheath for endosteal fixation of ligaments
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United States of America Patent
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-
May 18, 1993
Grant Date -
N/A
app pub date -
Feb 19, 1992
filing date -
Feb 19, 1992
priority date (Note) -
In Force
status (Latency Note)
Importance
Abstract
An interference screw and a cannulated sheath for fixating ligaments. A graft, attached between previously cut bone blocks, is placed under tension in a graft tunnel. The sheath has a cutout at one end such that during screw insertion, the graft is covered by the sheath and protected from the threads of the screw, while the bone to which the graft is being fixed is exposed to the threads of the screw. The screw is driven between the bone to which the graft is being fixed and a corresponding one of the bone blocks. The screw may be cannulated for insertion over a pre-positioned guide pin.
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