Method and apparatus for bone fixation with secondary compression
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.
179 Citations
36 Claims
-
1-9. -9. (Canceled)
-
10. A method of treating a femoral fracture, comprising the steps of:
-
drilling a bore distally into the 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 and forms 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; and
separating and removing the second portion of the body from the first portion of the body. - View Dependent Claims (11, 12, 13, 14, 16)
-
-
15. (Canceled)
-
17. A method of securing a first bone fragment to a second bone fragment, comprising the steps of:
-
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 helical distal anchor and a second portion that forms a proximal end of the body;
removably coupling the first portion of the body to the second portion of the body;
advancing through the bore the fixation device;
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 to engage the first fragment. - View Dependent Claims (18, 19, 20, 21, 22, 23, 24, 25, 26)
-
-
27-33. -33. (Canceled)
-
34. A method of fixing a first portion of a bone to a second portion of a bone, comprising the steps of:
-
providing a fixation device, having a proximal anchor, a distal anchor and a removable extension;
advancing the device across a fracture;
rotating the distal anchor to secure the distal anchor in the second portion of the bone;
distally advancing the proximal anchor against the first portion of the bone while applying proximal traction on the removable extension; and
removing the removable extension. - View Dependent Claims (35, 36)
-
Specification