Methods and tools for tibial intermedullary revision surgery and

Details Methods and tools for tibial intermedullary revision surgery and Methods and tools for tibial intermedullary revision surgery and

1998-10-13

2000-05-16

Buiz, Michael

Surgery

Instruments

Orthopedic instrumentation

606 87, 606102, 623 20, A61B 1758

Patent

active

060630914

ABSTRACT:
IM tibia revision tools include a trial stem extender having multiple notches which serve both as depth witness marks and holders for a stop clip, a collection of different sized tibial templates, each template adapted to receive an angular offset positioning guide, a collection of offset bushings, each bushing each bushing having a different offset distance and each being adapted to cooperate with the trial stem extender and the angular offset positioning guide, a neutral bushing for locating the position of the implant boss relative to the tibia and for reaming the tibia to accept the boss of the implant, a fin punch guide and fin punch for preparing the tibia to receive the keel of the tibial component, and a tool for translating the angular offset measurement to the tibial component. Tibial components according to the invention have three parts: the baseplate portion, the offset portion, and the stem portion. Each portion is provided in a variety of sizes and the portions may be mixed and matched according to the measurements made with the tools described above. Methods for using the tools and the tibial components are also disclosed.

REFERENCES:
patent: 5275603 (1994-01-01), Ferrante et al.
patent: 5290313 (1994-03-01), Heldreth
patent: 5356414 (1994-10-01), Cohen et al.
patent: 5578039 (1996-11-01), Vendrely et al.
patent: 5609642 (1997-03-01), Johnson et al.
patent: 5613970 (1997-03-01), Houston et al.

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