Surgery – Instruments – Orthopedic instrumentation
Reexamination Certificate
2006-08-22
2006-08-22
Robert, Eduardo C (Department: 3733)
Surgery
Instruments
Orthopedic instrumentation
Reexamination Certificate
active
07094241
ABSTRACT:
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.
REFERENCES:
patent: 4524766 (1985-06-01), Petersen
patent: 4566448 (1986-01-01), Rohr, Jr.
patent: 4574794 (1986-03-01), Cooke et al.
patent: 4646729 (1987-03-01), Kenna et al.
patent: 4738253 (1988-04-01), Buechel et al.
patent: 4825857 (1989-05-01), Kenna
patent: 4938762 (1990-07-01), Wehrli
patent: 5116338 (1992-05-01), Poggie et al.
patent: 5122144 (1992-06-01), Bert et al.
patent: 5234433 (1993-08-01), Bert et al.
patent: 5688280 (1997-11-01), Booth, Jr.
patent: 6296646 (2001-10-01), Williamson
patent: 6478799 (2002-11-01), Williamson
patent: 2002/0198530 (2002-12-01), Farling
patent: 2648699 (1990-12-01), None
patent: 2819168 (2002-07-01), None
Farling Toby N
Hodorek Robert A
Saenger Paul L
Sanford Adam H
Williamson Richard V
Baker & Daniels LLP
Feuchtwang Jonathan
Kim John
Robert Eduardo C
Zimmer Technology, Inc.
LandOfFree
Method and apparatus for achieving correct limb alignment in... does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Method and apparatus for achieving correct limb alignment in..., we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Method and apparatus for achieving correct limb alignment in... will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-3680311