Connective tissue grafting
AssigneeKambiz Behzadi
InventorsKambiz Behzadi, Michael E. Woods
Life of this patent
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Abstract
A system and method for an improved connective tissue repair option that reduces disadvantages of conventional fixation options. Biologic press fit fixation of a connective tissue unit may include in situ expansion of a pre-compressed connective tissue unit within a prepared bone tunnel of a portion of bone. An external opening accessing a cavity of the prepared bone tunnel may be smaller than that of the cavity such that expansion of the installed/compressed connective tissue unit increases lateral fixation forces exerted by the expanding/decompressing compressed connective tissue unit within the bone tunnel.
Claims26
A method for installing a graft into a portion of bone, comprising the steps of:
- a) sculpting a non-uniform bone tunnel within the portion of bone, said nonuniform bone tunnel including a bone tunnel opening defining a perimeter having a first cross-sectional area and a non-cylindrical cavity in the portion of bone beyond said bone tunnel opening;
- b) precompressing the graft prior to an installation of the graft within said non-uniform bone tunnel producing a precompressed graft, said precompressed graft defining an exterior perimeter having a second cross-sectional area smaller than said first cross-sectional area;
- and thereafter;
- c) inserting said precompressed graft into said non-cylindrical cavity;
- and thereafter
- d) decompressing said precompressed graft within said non-cylindrical cavity producing a decompressed graft;
- wherein said decompressed graft is configured to anchor the graft within the portion of bone without a foreign body.
A method for installing a graft into a presculpted non-uniform bone tunnel provided within a portion of bone, the non-uniform bone tunnel including a bone tunnel opening defining a perimeter having a first cross-sectional area and a non-uniform cavity in the portion of bone beyond the bone tunnel opening, comprising the steps of:
- a) precompressing the graft prior to an installation of the graft within said non-uniform bone tunnel producing a precompressed graft, said precompressed graft defining an exterior perimeter having a second cross-sectional area smaller than the first cross-sectional area;
- and thereafter;
- b) inserting said precompressed graft into the non-uniform cavity;
- and thereafter
- c) decompressing said precompressed graft within the non-uniform cavity producing a decompressed graft;
- wherein said decompressed graft is configured to anchor the graft within the portion of bone without a foreign body.
Dependencies are inferred from the claim text.