Instrumentation and method for repair of meniscus tissue
First Claim
1. A kit for placing an allograft meniscus implant on the surface of a human tibia comprising a meniscal implant of allograft material including a bone base and an instrumentation comprising (a) a drill apparatus, (b) a chisel, (c) a meniscus bone base measuring block and (d) a cutting work station.
3 Assignments
0 Petitions
Accused Products
Abstract
The invention is directed toward a method and instrumentation to replace a damaged human knee joint meniscus with an allograft meniscus. The implant has its bone base cut to a desired width in a workstation. The finished base is measured in the sizing groove of the sizing block for width and length. The tibia is then drilled with drill to the appropriate depth and length and groove is formed in the tibia with a tissue chisel so that the width is the same as the width of the bone base. The bone base is press fit into the tibia groove and may be secured with a bone screw.
167 Citations
19 Claims
- 1. A kit for placing an allograft meniscus implant on the surface of a human tibia comprising a meniscal implant of allograft material including a bone base and an instrumentation comprising (a) a drill apparatus, (b) a chisel, (c) a meniscus bone base measuring block and (d) a cutting work station.
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11. A kit as claimed in claimed 10 wherein said cutting blade has a distal beveled end.
- 13. A kit for placing an allograft meniscus implant on the surface of a human tibia comprising a meniscal implant of allograft material and an instrument comprising (a) a drill apparatus, (b) a chisel, (c) a meniscus bone base measuring block and (d) a cutting work station, said bone base measuring block defining a plurality of parallel grooves, each of which has a different width and marking indicia placed along the length of said grooves, said cutting workstation has a C shaped body with the legs defining a plurality of aligned slits and a cross bar mounted to said legs, and a thumb screw threadably mounted to said cross bar.
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18. A kit for placing an allograft meniscus implant on the surface of a human tibia comprising a meniscal implant of allograft material including a bone base and an instrument comprising (a) a drill apparatus, (b) a chisel, (c) a meniscus bone base measuring block and (d) a cutting work station, said bone base measuring block defines a plurality of parallel grooves, each of which has a different width and marking indicia placed along the length of said grooves, said cutting workstation has a C shaped body with the legs defining a plurality of aligned slits and a cross bar mounted to said legs, a thumb screw threadably mounted to said cross bar, said drill apparatus comprises a housing with an integral handle extending from said handle, a drill rod assembly axially and rotatably mounted in said housing and a clamping rod mounted in said housing and extending past said housing, said clamping rod having a C shaped end curved back towards said housing.
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19. A method of preparing a meniscus implant having a bone base comprising the steps of:
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(a) cutting the bone base into cylindrical posts of predetermined diameter; (b) drilling a bore into a tibia having a predetermined diameter equal to or slightly larger than the diameter of each cylindrical post; (c) placing each aid cylindrical post into a respective tibial bore; and
,(d) fastening each said cylindrical post in said respective tibia bore.
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Specification