Method and apparatus for achieving correct limb alignment in unicondylar knee arthroplasty
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United States of America Patent
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Nov 30, 2010
Issued Date -
N/A
app pub date -
Jul 10, 2006
filing date -
Nov 27, 2002
priority date (Note) -
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Abstract
A method and apparatus for linking the distal femoral cut and the proximal tibial cut in unicondylar knee arthroplasty is disclosed. A spacing apparatus is positioned in the relevant knee compartment and utilized to hold the knee in position to correct limb alignment. The spacing apparatus includes a femoral cut slot through which the distal femoral cut is made and further includes tibial affixment apertures through which a headless securing device can be positioned to secure the spacing apparatus to the tibia. After the distal femoral resection is complete, the spacing apparatus is removed, with the headless securing devices remaining positioned in the tibia. The headless securing devices are used as a reference for securing a tibial cut block to the tibia for making the proximal tibial resection. With the mechanism of the present invention, the knee can be placed in flexion when making the proximal tibial cut.
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