Bone-tendon-bone assembly with cancellous allograft bone block
First Claim
1. A sterile composite graft comprising:
- first and second bone blocks, each bone block defining a central through going bore having a cross section which will allow a ligament replacement to be passed therethrough and at least one longitudinal channel cut substantially parallel to the axis of the central through going bore in the exterior surface of said bone block with the opposite side of the bone block defining a flat longitudinal surface, a ligament replacement mounted to said bone blocks, said ligament replacement extending through said central bore of said bone blocks and looped around said first and second bone blocks adjacent to said longitudinal flat surface.
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Accused Products
Abstract
The invention is directed toward a cancellous bone block assembly with at least one tendon replacement member being extended between two shaped cancellous bone blocks. Each substantially cylindrically shaped cancellous bone block has a central through going bore, a flat exterior longitudinal surface and a channel longitudinally cut in the exterior of the bone block body opposite the flat longitudinal surface. The tendon replacement member is inserted through the central through going bore around the end of the block and looped back along the flat longitudinal side where it is tied to the back of the tendon loop. A channel cut in the exterior surface is adapted to receive an interference screw to keep the block anchored in a bone tunnel previously cut in the respective bone.
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Citations
61 Claims
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1. A sterile composite graft comprising:
first and second bone blocks, each bone block defining a central through going bore having a cross section which will allow a ligament replacement to be passed therethrough and at least one longitudinal channel cut substantially parallel to the axis of the central through going bore in the exterior surface of said bone block with the opposite side of the bone block defining a flat longitudinal surface, a ligament replacement mounted to said bone blocks, said ligament replacement extending through said central bore of said bone blocks and looped around said first and second bone blocks adjacent to said longitudinal flat surface. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19)
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20. A sterile bone-tendon-bone assembly comprising:
an allograft cancellous bone block defining an outer curved surface, a central through going bore with a substantially oval cross section and a channel cut in its outer exterior surface;
the exterior of said bone block opposite said channel being formed with a planar surface, a tendon replacement member comprising an allograft bone block and an integral tendon, said tendon extending through said central bore of said bone block and looped around said planar surface of said bone block and at least one suture hole cut transverse to the axis of said central bore and intersecting said central bore in said bone block.
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21. A sterile bone-tendon-bone assembly comprising:
an allograft cancellous bone block defining an outer curved surface, a central through going bore with a substantially oval cross section and a channel cut in its outer exterior surface;
the exterior of said bone block opposite said channel being formed with a planar surface, a tendon replacement member comprising at least one tendon, said tendon extending through said central bore of said bone block and looped around said planar surface of said bone block, said tendon being secured to said bone block and at least one suture hole cut transverse to the axis of said central bore and leading to said central bore in said bone block.- View Dependent Claims (22, 23, 24, 25, 26, 27, 28, 29, 30)
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31. A sterile bone-tendon-bone assembly comprising:
first and second substantially cylindrical allograft cancellous bone blocks, each bone block defining a central through going bore, a channel cut in its outer surface and a planar surface cut on the opposite side of said bone block from said channel, a tendon replacement member extending between said first and second bone blocks through said central bore, and seated over said planar surface longitudinally alongside each of said first and second bone blocks and at least one suture hole cut transverse to said central bore away from said channel and communicating with said central bore in each of said bone blocks. - View Dependent Claims (32)
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33. A sterile bone-tendon-bone assembly comprising:
first and second substantially cylindrical allograft cancellous bone blocks, each of said blocks defining a central bore and a longitudinally running channel formed on the exterior surface of said bone block running the length of the bone block;
a first tendon replacement strand extending between said first and second bone blocks through said central bore and positioned on the exterior surface of each of said first and second bone blocks opposite from said longitudinal channel; and
a second tendon replacement strand extending between said first and second bone blocks through said central bore and longitudinally along the exterior surface of each of said first and second bone blocks adjacent to at least a portion of said first tendon replacement strand.- View Dependent Claims (34, 35, 36, 37, 38, 39, 40, 41, 42)
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43. A sterile reconstructed cruciate tendon assembly comprising:
first and second allograft substantially cylindrical bone blocks;
each bone block comprising a body of cancellous bone with a central through going bore, a channel cut in the outer surface of said substantially cylindrical body and a flat surface forming a cord cut into the outer surface of substantially cylindrical body opposite said channel, a tendon replacement strand extending between said first and second bone blocks is inserted through said central bore and attached longitudinally alongside each of said first and second bone blocks adjacent said flat surface with said first and second bone blocks each having at least one suture hole extending radially through said bone block from said central bore through to an outer surface and said bone blocks have an angled beveled end surface.- View Dependent Claims (44, 45)
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46. A sterile bone block for use in tendon implants comprising:
a cancellous bone block body with a curved outer surface having a central through going bore with an oval shared cross section, said bone block body defining a longitudinal channel cut in an exterior surface of said bone block body running the length of the body and a flat longitudinal surface cut in an exterior surface of said bone block opposite said longitudinal channel running the entire length of the body and at least one suture hole spaced away from said longitudinal channel formed radially from an exterior surface of said bone block body extending through to the central bore. - View Dependent Claims (47, 48, 49, 50, 51, 52, 53)
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54. A sterile composite graft comprising:
first and second allograft cancelleous bone blocks, each bone block defining a central through going bore having a cross section which will allow a ligament replacement to be passed therethrough and at least one longitudinal channel cut substantially parallel to the axis of the central through going bore in the exterior surface of said bone block, a ligament replacement mounted to said bone blocks, said ligament replacement extending through said central bore of said bone blocks and looped around said first and second bone blocks, said bone block when mounted in a bone tunnel with an interference screw having a pull out force which is greater than 200 Newtons. - View Dependent Claims (55, 56, 57, 58, 59, 60, 61)
Specification