Joint replacement method
First Claim
1. A method for repairing or replacing at least a portion of a joint in a patient, comprising:
- positioning an alignment guide on a diseased or damaged articular surface of a bone of the joint, wherein the alignment guide is custom fabricated for the patient based on imaging information of the joint and includes a cannulation configured and dimensioned to place a reference on the bone;
positioning a cutting guide having a guide surface, the positioning of the cutting guide with respect to at least two references; and
cutting at least a portion of the articular surface of the bone of the joint by moving a cutting tool along the guide surface of the cutting guide.
4 Assignments
0 Petitions
Accused Products
Abstract
Imaging of a left or right joint is performed preoperatively, and an alignment guide and a custom cutting guide are formed based on the imaging. The alignment guide includes cannulations into which pins are placed. The cutting guide is then aligned using the pins, and bone of the joint is cut, using the guide, in preparation for an implant operative to replace a portion of the joint. The cutting guide is provided with one or more slots or surfaces to aid in aligning a cutting instrument. The alignment guide or cutting guide may be modified to correct for an existing joint problem, for example an incorrect alignment of the joint. The alignment guide or cutting guide may be formed with polymeric material.
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Citations
43 Claims
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1. A method for repairing or replacing at least a portion of a joint in a patient, comprising:
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positioning an alignment guide on a diseased or damaged articular surface of a bone of the joint, wherein the alignment guide is custom fabricated for the patient based on imaging information of the joint and includes a cannulation configured and dimensioned to place a reference on the bone; positioning a cutting guide having a guide surface, the positioning of the cutting guide with respect to at least two references; and cutting at least a portion of the articular surface of the bone of the joint by moving a cutting tool along the guide surface of the cutting guide. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14)
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15. A method for repairing or replacing at least a portion of a joint in a patient, comprising:
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positioning an alignment guide on a diseased or damaged articular surface of a bone of the joint, wherein the alignment guide is custom fabricated for the patient based on imaging information of the joint and, the alignment guide having a cannulation configured for a cutting instrument; guiding at least a portion of the cutting instrument through at least a portion of the cannulation and cutting a reference in the bone; positioning a cutting guide with respect to the reference, the cutting guide configured to cut the articular surface; and positioning an arthoplasty component on the cut surface. - View Dependent Claims (16, 17, 18, 19, 20, 21, 22, 23)
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24. A method for repairing or replacing at least a portion of a joint in a patient, comprising:
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positioning an alignment guide on an articular surface of a bone of the joint, wherein the alignment guide is custom fabricated for the patient based on imaging information of the joint, the alignment guide having at least two cannulations; forming apertures in bone, using the at least two cannulations; removing the alignment guide from the articular surface; aligning a cutting guide using the formed apertures; and cutting the articular surface of the bone of the joint by moving a cutting tool along a guide surface of the cutting guide. - View Dependent Claims (25, 26, 27, 28, 29, 30, 31, 32, 33, 34, 35)
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36. A method for repairing or replacing at least a portion of a joint in a patient, comprising:
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positioning an alignment guide with respect to a bone of the joint, wherein the alignment guide is custom fabricated for the patient based on imaging information of a cut bone surface and includes a cannulation configured and dimensioned to place a reference on the bone; positioning a cutting guide having a guide surface, the positioning of the cutting guide with respect to at least two references; and cutting at least a portion of the bone of the joint by moving a cutting tool along a guide surface of the cutting guide. - View Dependent Claims (37, 38)
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39. A method for repairing or replacing at least a portion of a joint in a patient, comprising:
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positioning an alignment guide on a diseased or damaged articular surface of a bone of the joint, wherein the alignment guide is custom fabricated for the patient based on imaging information of the joint and, the alignment guide being configured to receive a cutting instrument; guiding at least a portion of the cutting instrument through at least a portion of the alignment guide; forming a reference in the bone with the cutting instrument; positioning a cutting guide with respect to the reference, the cutting guide configured to cut the articular surface; and positioning an arthoplasty component on the cut surface. - View Dependent Claims (40, 41, 42)
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43. A method of performing surgery on a patient'"'"'s knee including a femur and a tibia, the method comprising the steps of:
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making an incision in a knee portion of a leg of the patient; positioning a cutting guide through the incision and on a side surface of a distal end portion of the femur; moving a cutting tool through the incision into engagement with a guide surface on the cutting guide; and cutting the femur by moving the cutting tool along the guide surface, wherein the cutting guide is positioned free of an extramedullary or intramedullary alignment rod.
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Specification