Patient-specific osteotomy devices and methods
First Claim
Patent Images
1. An osteotomy method comprising:
- attaching a patient-specific osteotomy guide to a corresponding surface of a tibia of a patient, the osteotomy guide having a three-dimensional engagement surface configured during a preoperative plan for the patient using computer imaging to mate as a negative surface of the corresponding surface of the tibia;
drilling a guiding hole into the tibia through a drill hole of the osteotomy guide;
making an osteotomy at a patient-specific orientation through a resection slot of the osteotomy guide, the resection slot intersecting the drill hole and configured for the specific patient during the preoperative plan of the patient;
removing the osteotomy guide; and
opening first and second faces of the osteotomy to form a first angle using a patient-specific osteotomy spreader.
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Abstract
An osteotomy method includes attaching a patient-specific osteotomy guide to a corresponding surface of a tibia of a patient and making an osteotomy at a patient-specific orientation through a resection slot of the osteotomy guide. The osteotomy guide is removed and first and second faces of the osteotomy are opened to form an implant insertion angle. The first and second faces of the osteotomy are secured at the implant insertion angle and an osteotomy implant having a patient-specific wedge angle that is smaller than the implant insertion angle is implanted. The first and second faces of the osteotomy are brought to the patient-specific wedge angle and in contact with the osteotomy implant.
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Citations
14 Claims
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1. An osteotomy method comprising:
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attaching a patient-specific osteotomy guide to a corresponding surface of a tibia of a patient, the osteotomy guide having a three-dimensional engagement surface configured during a preoperative plan for the patient using computer imaging to mate as a negative surface of the corresponding surface of the tibia; drilling a guiding hole into the tibia through a drill hole of the osteotomy guide; making an osteotomy at a patient-specific orientation through a resection slot of the osteotomy guide, the resection slot intersecting the drill hole and configured for the specific patient during the preoperative plan of the patient; removing the osteotomy guide; and opening first and second faces of the osteotomy to form a first angle using a patient-specific osteotomy spreader. - View Dependent Claims (2, 3)
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4. An osteotomy method comprising:
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attaching a patient-specific osteotomy guide to a corresponding surface of a tibia of a patient, the osteotomy guide configured during a preoperative plan for the patient to mate only in one position on the corresponding surface of the tibia; drilling a guiding hole into the tibia through a drill hole of the osteotomy guide; making an osteotomy at a patient-specific orientation through a resection slot of the osteotomy guide, the resection slot intersecting the drill hole and configured for the specific patient during the preoperative plan of the patient; removing the osteotomy guide; opening first and second faces of the osteotomy to form a first angle using a patient-specific osteotomy spreader; and opening the osteotomy to form a second angle greater than the first angle using an osteotome stacked over the osteotomy spreader. - View Dependent Claims (5, 6, 7, 8, 9, 10)
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11. An osteotomy method comprising:
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attaching a patient-specific osteotomy guide to a corresponding surface of a tibia of a patient, the osteotomy guide configured during a preoperative plan for the patient to mate only in one position on the corresponding surface of the tibia; drilling a guiding hole into the tibia through a drill hole of the osteotomy guide making an osteotomy at a patient-specific orientation through a resection slot of the osteotomy guide, the resection slot intersecting the drill hole and configured for the specific patient during the preoperative plan of the patient; removing the osteotomy guide; opening first and second faces of the osteotomy to form a first angle using a patient-specific spreader; and inserting a blade guard against a posterior bone surface of the tibia.
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12. An osteotomy method comprising:
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attaching a patient-specific osteotomy guide to a corresponding surface of a tibia of a patient, the osteotomy guide having a patient-specific three-dimensional engagement surface made preoperatively to conform as a negative surface of the corresponding surface of the tibia; making an osteotomy at a patient-specific orientation through a resection slot of the osteotomy guide; removing the osteotomy guide; opening first and second faces of the osteotomy to form an implant insertion angle; securing the first and second faces of the osteotomy at the implant-insertion angle; implanting an osteotomy implant having a patient-specific wedge angle that is smaller than the implant-insertion angle; and bringing the first and second faces of the osteotomy to the patient-specific wedge angle and in contact with the osteotomy implant. - View Dependent Claims (13, 14)
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Specification