SYSTEMS AND METHODS FOR THE FIXATION OR FUSION OF BONE
First Claim
1. A method comprisingidentifying a bone site comprising a first bone segment, a second bone segment, and a joint between the first and second bone segments,providing an elongated bone fusion device having a rectilinear cross section and including an exterior surface treated to provide bony in-growth, the elongated bone fusion device including a lumen accommodating passage over a guide pin,forming a bore in the first bone segment,forming a bore in the second bone segment that faces the bore in the first bone segment across the joint, the bores in the first and second segments each being sized and configured to tightly engage the exterior surface of the elongated bone fusion device,placing in the bore of the first bone segment a guide pin that extends across the joint into the bore of the second bone segment,fusing the joint by passing the elongated bone fusion device over the guide pin across the joint and into tight engagement within the bores of the first and second bone segments, to thereby restrict movement of the elongated bone fusion device across the joint and provide bony in-growth within the bores along the exterior surface of the bone fusion device, andremoving the guide pin.
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Abstract
A joint between two bone segments is fused by passing an elongated, rectilinear bone fusion device over a guide pin across the joint and into tight engagement within bores formed in the bone segments, to thereby restrict movement of the elongated bone fusion device across the joint. The elongated, rectilinear bone fusion device also provides bony in-growth within the bores along the exterior surface of the bone fusion device.
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Citations
8 Claims
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1. A method comprising
identifying a bone site comprising a first bone segment, a second bone segment, and a joint between the first and second bone segments, providing an elongated bone fusion device having a rectilinear cross section and including an exterior surface treated to provide bony in-growth, the elongated bone fusion device including a lumen accommodating passage over a guide pin, forming a bore in the first bone segment, forming a bore in the second bone segment that faces the bore in the first bone segment across the joint, the bores in the first and second segments each being sized and configured to tightly engage the exterior surface of the elongated bone fusion device, placing in the bore of the first bone segment a guide pin that extends across the joint into the bore of the second bone segment, fusing the joint by passing the elongated bone fusion device over the guide pin across the joint and into tight engagement within the bores of the first and second bone segments, to thereby restrict movement of the elongated bone fusion device across the joint and provide bony in-growth within the bores along the exterior surface of the bone fusion device, and removing the guide pin.
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5. A joint fusion device comprising
an elongated device having a rectilinear cross section free of screw threads and being sized and configured for placement in association with a joint between individual first and second bone segments in response to an axially applied, non-rotational force, the elongated bone fusion device including a lumen to accommodate passage over a guide pin during placement and an exterior surface treated to provide bony in-growth upon placement.
Specification