Method and apparatus for bone fixation with secondary compression
First Claim
1. An orthopedic procedure, comprising the steps of:
- drilling a bore distally into a femur in the direction of a fracture;
advancing into the bore a fixation device that comprises a body having a first portion that forms a cancellous bone anchor and a second portion that is removably attached to the first portion to form a junction, the second portion forming a proximal end of the body;
rotating a proximal anchor carried by the body of the fixation device to rotate the cancellous bone anchor and engage the cancellous bone anchor with bone tissue distal of the femoral fracture; and
advancing the proximal anchor distally along the fixation device to compress the fracture such that the junction of the first and second portions is disposed within a lumen of the proximal anchor; and
separating and removing the second portion of the body from the first portion of the body with a proximal end of the first portion being disposed within the lumen of the proximal anchor when the second portion of the body is removed.
7 Assignments
0 Petitions
Accused Products
Abstract
Disclosed is a fracture fixation device, for reducing and compressing fractures in a bone. The fixation device includes an elongate body comprising a first portion and a second portion that are detachably coupled to each other. The first portion defines a helical cancellous bone anchor and the second portion defines a distal end. An axially moveable proximal anchor is carried by the proximal end of the fixation device and is rotationally locked to the first portion. The device is rotated into position across the femoral neck and into the femoral head, and the proximal anchor is distally advanced to lock the device into place. The second portion is then detached from the first portion.
221 Citations
19 Claims
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1. An orthopedic procedure, comprising the steps of:
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drilling a bore distally into a femur in the direction of a fracture; advancing into the bore a fixation device that comprises a body having a first portion that forms a cancellous bone anchor and a second portion that is removably attached to the first portion to form a junction, the second portion forming a proximal end of the body; rotating a proximal anchor carried by the body of the fixation device to rotate the cancellous bone anchor and engage the cancellous bone anchor with bone tissue distal of the femoral fracture; and advancing the proximal anchor distally along the fixation device to compress the fracture such that the junction of the first and second portions is disposed within a lumen of the proximal anchor; and separating and removing the second portion of the body from the first portion of the body with a proximal end of the first portion being disposed within the lumen of the proximal anchor when the second portion of the body is removed. - View Dependent Claims (2, 4, 5, 6, 19)
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3. An orthopedic procedure as in claim , wherein the cancellous bone anchor comprises a helical anchor.
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7. A method of securing a first bone fragment to a second bone fragment, comprising the steps of:
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drilling a bore through the first bone fragment in the direction of the second bone fragment; providing a fixation device that comprises a body having a first portion that forms a helical distal anchor and a second portion that forms a proximal end of the body, the first portion being removably attachable to the second portion to form a junction; removably coupling the first portion of the body to the second portion of the body; advancing through the bore the fixation device that comprises a body having a first portion that forms a cancellous bone anchor and a second portion that forms a proximal end; rotating a proximal anchor carried by the body of the fixation device to rotate and secure the distal anchor of the fixation device to the second fragment; and axially advancing the proximal anchor of the fixation device relative to the first and second portions of the body to engage the first fragment such that the junction of the first and second portions is disposed within a lumen of the proximal anchor. - View Dependent Claims (8, 9, 10, 11, 12, 13, 14, 15, 16)
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17. A method of fixing a first bone portion to a second bone portion, comprising the steps of:
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providing a fixation device, having a proximal anchor, a distal anchor and a removable extension, the removable extension being removably attachable to the distal anchor to form a junction; advancing the device through the first bone portion and into the second bone portion; rotating the distal anchor to secure the distal anchor in the second bone portion; distally advancing the proximal anchor against the first bone portion such that the junction of the distal anchor and the removable extension is disposed within a lumen of the proximal anchor; and removing the removable extension with a proximal end of the distal anchor being disposed within the lumen of the proximal anchor when the is removed and wherein removing the removable extension comprises rotating the removable the extension with respect to the fixation device and about a longitudinal axis of the fixation device. - View Dependent Claims (18)
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Specification