Surgery – Instruments – Orthopedic instrumentation
Patent
1995-11-03
1998-01-06
Buiz, Michael
Surgery
Instruments
Orthopedic instrumentation
606 87, A61B 1756
Patent
active
057049416
ABSTRACT:
Apparatus and method for the preparation of the proximal tibia for resection at a selected resection level utilize an external alignment shaft having an exposed upper end for the reception of a tibial resection guide over the exposed upper end for movement downwardly along the alignment shaft, securement to the alignment shaft at a resection location along the alignment shaft, and affixation to the proximal tibia at the resection level, the alignment shaft having an upper rod detachable from a lower tubular member for withdrawal of the upper rod from the lower tubular member, and for withdrawal upwardly from the tibial resection guide while the tibial resection guide is maintained affixed to the proximal tibia at the resection location, for full access of the tibial resection guide to a resection device to accomplish resection of the proximal tibia. A head at the upper end of the alignment shaft is anchored to the proximal tibia with fixation pins mounted for movement relative to the head for facilitating advancement and retraction of the fixation pins without disturbing the location of the tibial resection guide. The tibial resection guide is coupled to the alignment shaft with a securing member which projects sideways from the tibial resection guide so as to facilitate access to the tibial resection guide by the resection device. Selective attachment and detachment of a stylus assembly and the tibial resection guide is facilitated by a quick-connect mechanism, which assures positive location of a stylus for accurate location of the resection level.
REFERENCES:
patent: 3596554 (1971-08-01), Low
patent: 5282803 (1994-02-01), Lackey
patent: 5462550 (1995-10-01), Dietz et al.
The P.C.A Primary Total Knee System, Howmedica Inc., 1984.
Duracon.RTM. The Tibial System, Howmedica, pp. 12-15, 1994.
Jacober John S.
Nedilsky Andrij J.
Trimmer Kenneth H.
Wilson Thomas G.
Buiz Michael
Jacob Arthur
Osteonics Corp.
Reip David O.
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