METHOD AND APPARATUS FOR ACHIEVING CORRECT LIMB ALIGNMENT IN UNICONDYLAR KNEE ARTHROPLASTY
    1.
    发明申请
    METHOD AND APPARATUS FOR ACHIEVING CORRECT LIMB ALIGNMENT IN UNICONDYLAR KNEE ARTHROPLASTY 有权
    方法和装置在二次膝关节韧带中获得正确的对位

    公开(公告)号:US20060241637A1

    公开(公告)日:2006-10-26

    申请号:US11456303

    申请日:2006-07-10

    IPC分类号: A61F5/00

    摘要: A method and apparatus for correcting limb alignment in a unicondylar knee arthroplasty and linking the distal femoral cut and the proximal tibial cut. Alignment rods are connected to a spacing apparatus to facilitate correction of limb alignment. The alignment rods are positioned along the mechanical axis of the femur and the tibia and the knee joint is positioned to correct alignment. 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 and the distal femoral cut is linked to the proximal tibial cut.

    摘要翻译: 一种用于矫正单髁膝关节置换术中肢体对位的方法和装置,并且连接股骨远端切口和近端胫骨切口。 对准杆连接到间隔装置以便于肢体对准的校正。 对准杆沿着股骨的机械轴线定位,并且胫骨和膝关节定位成校正对准。 间隔装置位于相关的膝盖室中,用于将膝盖保持在适当的位置以校正肢体对准。 所述间隔装置包括股骨切割槽,所述远端股骨切口通过所述切口槽进一步包括胫骨固定孔,无头固定装置可通过所述胫骨固定孔将所述间隔装置固定到所述胫骨。 在股骨远端切除完成后,移除间隔装置,无头固定装置保持定位在胫骨内。 将无头固定装置用作将胫骨切割块固定到胫骨以进行近端胫骨切除的参考。 利用本发明的机构,当进行近端胫骨切割并且远端股骨切割与胫骨近端切口相连时,可以将膝盖置于弯曲处。

    METHOD AND APPARATUS FOR ACHIEVING CORRECT LIMB ALIGNMENT IN UNICONDYLAR KNEE ARTHROPLASTY

    公开(公告)号:US20060247647A1

    公开(公告)日:2006-11-02

    申请号:US11456310

    申请日:2006-07-10

    IPC分类号: A61F5/00

    摘要: A method and apparatus for correcting limb alignment in a unicondylar knee arthroplasty and linking the distal femoral cut and the proximal tibial cut. Alignment rods are connected to a spacing apparatus to facilitate correction of limb alignment. The alignment rods are positioned along the mechanical axis of the femur and the tibia and the knee joint is positioned to correct alignment. 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 and the distal femoral cut is linked to the proximal tibial cut.