Knee joint prosthesis system and method for implantation
First Claim
1. A method for preparing at least a first bone for receiving a prosthesis, the method comprising:
- positioning an intramedullary (IM) member in a bone;
locating a frame onto the bone at a desired location;
coupling an alignment assembly to the frame, the alignment assembly comprising an alignment member and a locating bushing, the alignment member having a receiving portion;
moving the alignment assembly relative to the IM member to position the frame at a desired location relative to the bone wherein moving the alignment assembly comprises;
positioning the locating bushing into the receiving portion, the locating bushing defining a bore configured to accept the IM member therethrough; and
rotating the locating bushing within the receiving portion until the frame locates at the desired location relative to the bone;
fixing the frame to the bone at the desired location;
removing the locating bushing from the alignment member and the IM member from the bone;
inserting a reamer bushing into the receiving portion of the alignment member;
reaming a cavity into the bone using the reamer bushing as a guide;
removing the alignment assembly from the frame;
coupling a cutting block to the frame; and
preparing cuts on the bone using the cutting block as a guide.
5 Assignments
0 Petitions
Accused Products
Abstract
A method for preparing at least a first bone for receiving a prosthesis can include positioning an IM member in a bone. A scaffold, skeleton or frame can be located onto the bone at a desired location. An alignment assembly can be coupled to the frame. The alignment assembly can be moved relative to the IM member to position the frame at a desired location relative to the bone. The frame can be fixed to the bone at the desired location. A cavity can be reamed into the bone using at least a portion of the alignment assembly as a guide. The alignment assembly can be removed from the frame. A cutting block can be coupled to the first attachment portion. Cuts can be prepared in the bone using the cutting block as a guide.
950 Citations
27 Claims
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1. A method for preparing at least a first bone for receiving a prosthesis, the method comprising:
- positioning an intramedullary (IM) member in a bone;
locating a frame onto the bone at a desired location;
coupling an alignment assembly to the frame, the alignment assembly comprising an alignment member and a locating bushing, the alignment member having a receiving portion;
moving the alignment assembly relative to the IM member to position the frame at a desired location relative to the bone wherein moving the alignment assembly comprises;
positioning the locating bushing into the receiving portion, the locating bushing defining a bore configured to accept the IM member therethrough; and
rotating the locating bushing within the receiving portion until the frame locates at the desired location relative to the bone;
fixing the frame to the bone at the desired location;
removing the locating bushing from the alignment member and the IM member from the bone;
inserting a reamer bushing into the receiving portion of the alignment member;
reaming a cavity into the bone using the reamer bushing as a guide;
removing the alignment assembly from the frame;
coupling a cutting block to the frame; and
preparing cuts on the bone using the cutting block as a guide. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12)
- positioning an intramedullary (IM) member in a bone;
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13. A method for preparing at least a first bone for receiving a prosthesis, the method comprising:
- positioning an intramedullary (IM) member in a first bone;
locating a frame having a first attachment portion and a second attachment portion onto the first bone;
coupling an alignment assembly to the first attachment portion, the alignment assembly including an alignment member and a locating bushing, the alignment member having a receiving portion;
moving the alignment assembly relative to the IM member to position the frame at a desired location relative to the first bone, wherein moving the alignment assembly comprises;
positioning the locating bushing into the receiving portion, the locating bushing defining a bore configured to accept the IM member therethrough; and
rotating the locating bushing within the receiving portion until the frame locates at the desired location relative to the first bone;
coupling a posterior foot to the second attachment portion, confirming a position of the first bone relative to a second bone while the first and second bones are in a first orientation while referencing the posterior foot;
fixing the frame to the first bone at the desired location once a desired position of the first and second bones in the first orientation is confirmed;
removing the locating bushing from the alignment member;
removing the IM member from the first bone;
inserting a reamer bushing into the receiving portion of the alignment member; and
reaming a cavity into the first bone using the reamer bushing as a guide. - View Dependent Claims (14, 15, 16, 17, 18, 19, 20, 21, 22, 23)
- positioning an intramedullary (IM) member in a first bone;
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24. A method for preparing at least a first bone for receiving a prosthesis, the method comprising:
- positioning an intramedullary (IM) member in a bone;
locating a frame onto the bone at a desired location;
coupling an alignment assembly to the frame wherein the coupling comprises;
depressing a rail associated with one of the frame or the alignment assembly;
slidably advancing the rail along a guide slot defined on the other of the frame or the alignment assembly until the rail retracts from the depressed position and locates into a locking slot in the other of the frame or the alignment assembly;
moving the alignment assembly relative to the IM member to position the frame at a desired location relative to the bone;
fixing the frame to the bone at the desired location;
reaming a cavity into the bone using at least a portion of the alignment assembly as a guide;
removing the alignment assembly from the frame;
coupling a cutting block to the frame; and
preparing cuts on the bone using the cutting block as a guide. - View Dependent Claims (25, 26, 27)
- positioning an intramedullary (IM) member in a bone;
Specification