Surgery – Instruments – Orthopedic instrumentation
Patent
1994-06-06
1996-11-26
Hafer, Robert A.
Surgery
Instruments
Orthopedic instrumentation
606 86, A61F 500
Patent
active
055780385
ABSTRACT:
A jig for use in connection with a tibial osteotomy procedure. The jig is for locating a curvilinear-cut axis prior to making a desired curvilinear cut through the tibia so that such axis is approximately normal to a plane substantially parallel to the sagittal plane. The jig includes positioner structure lying in a jig plane for positioning adjacent a desired tibial region, and aligner structure for adjusting the jig so that the jig plane is substantially parallel to a plane parallel to the sagittal plane. The positioner structure also includes locator structure that is usable, with the adjusted jig, to locate the curvilinear-cut axis. In a preferred embodiment, the positioner structure includes first and second elongate members that are pivotably interconnected with respect to each other. The first and second members are also provided with marking structure for marking the located curvilinear-cut axis and with respective first and second pins for linking the jig to the corresponding tibial bone sections. The linking pins allow the jig to be used, after making such cut, to hold neutrally the two tibial bone sections relative to one another while the proximal section is correctively rotated with respect to the distal section.
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Hafer Robert A.
Hanlon Brian E.
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