Patient-specific knee alignment guide and associated method
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1. A method for accessing a portion of a bone of a patient relative to a soft tissue on a surface of the bone, comprising:
- mating a patient-specific three-dimensional curved inner surface of a first guide onto a corresponding three-dimensional surface of the bone, the patient-specific three-dimensional curved inner surface preoperatively configured from three dimensional images of the bone, where the first guide is based on converted scan data to three dimensional images of the bone of the patient'"'"'s anatomy including a knee joint anatomy including images of the knee joint surfaces of at least one of a distal femur bone or a proximal tibial bone with or without associated soft tissue on the distal femur bone or the proximal tibial bone;
drilling a first hole into the bone surface through a first guiding aperture of the first guide; and
placing a member in the first hole into the bone near the knee joint surface, wherein drilling the first hole into the bone surface through the first guiding aperture of the first guide includes drilling the first hole through the first guide aperture that is at least one of positioned on an anterior-medial side of the bone or an anterior-lateral side of the bone.
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Abstract
A method of preparing a knee joint for a prosthesis in a patient includes mating a patient-specific three-dimensional curved inner surface of a femoral alignment guide onto a corresponding three-dimensional femoral joint surface of the patient. The patient-specific three-dimensional curved inner surface is preoperatively configured from medical scans of the knee joint of the patient. First and second holes are drilled into an anterior portion of the femoral joint surface through corresponding first and second guiding apertures of the femoral alignment guide.
1588 Citations
20 Claims
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1. A method for accessing a portion of a bone of a patient relative to a soft tissue on a surface of the bone, comprising:
- mating a patient-specific three-dimensional curved inner surface of a first guide onto a corresponding three-dimensional surface of the bone, the patient-specific three-dimensional curved inner surface preoperatively configured from three dimensional images of the bone, where the first guide is based on converted scan data to three dimensional images of the bone of the patient'"'"'s anatomy including a knee joint anatomy including images of the knee joint surfaces of at least one of a distal femur bone or a proximal tibial bone with or without associated soft tissue on the distal femur bone or the proximal tibial bone;
drilling a first hole into the bone surface through a first guiding aperture of the first guide; and
placing a member in the first hole into the bone near the knee joint surface, wherein drilling the first hole into the bone surface through the first guiding aperture of the first guide includes drilling the first hole through the first guide aperture that is at least one of positioned on an anterior-medial side of the bone or an anterior-lateral side of the bone. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12)
- mating a patient-specific three-dimensional curved inner surface of a first guide onto a corresponding three-dimensional surface of the bone, the patient-specific three-dimensional curved inner surface preoperatively configured from three dimensional images of the bone, where the first guide is based on converted scan data to three dimensional images of the bone of the patient'"'"'s anatomy including a knee joint anatomy including images of the knee joint surfaces of at least one of a distal femur bone or a proximal tibial bone with or without associated soft tissue on the distal femur bone or the proximal tibial bone;
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13. A method for accessing a portion of a bone of a patient relative to a soft tissue on a surface of the bone, comprising:
- determining placement a guide relative to a joint surface of a knee joint anatomy based on converted scan data to three dimensional images of the bone of the patient including the knee joint anatomy including images of a knee joint surface of at least a distal femur bone with or without the associated soft tissue on the surface of the bone;
mating a patient-specific three-dimensional curved inner surface of the guide onto a corresponding three-dimensional surface of the distal femur bone, the patient-specific three-dimensional curved inner surface preoperatively configured from the three dimensional images of the distal femur bone;
drilling a first hole at a selected location into the distal femur bone relative to the knee joint surface through a first guiding aperture of the guide;
placing a member in the first hole into the bone near the knee joint surface; and
preparing the bone with the placed member in the first hole, including preparing a portion of the distal femur relative to the knee joint surface, wherein drilling the first hole into the bone surface through the first guiding aperture of the guide includes drilling the first hole through the first guide aperture that is at least one of positioned on an anterior-medial side of the femur or an anterior-lateral side of the femur. - View Dependent Claims (14, 15, 16, 17, 18)
- determining placement a guide relative to a joint surface of a knee joint anatomy based on converted scan data to three dimensional images of the bone of the patient including the knee joint anatomy including images of a knee joint surface of at least a distal femur bone with or without the associated soft tissue on the surface of the bone;
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19. A method for accessing a portion of a bone of a patient relative to a soft tissue on a surface of the bone, comprising:
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determining placement a guide relative to a knee joint surface based on a converted scan data to three dimensional images of the bone of the patient, wherein the bone includes a distal femur and the scan data includes images of the knee joint surface of at least the distal femur with or without a soft tissue associated with the knee joint surface; mating a patient-specific three-dimensional curved inner surface of the guide onto a corresponding three-dimensional surface of the knee joint surface, the patient-specific three-dimensional curved inner surface preoperatively configured from the three dimensional images of the distal femur bone; forming at least a first hole at a selected location into the distal femur bone relative to the knee joint surface through a first guiding aperture of the guide, wherein the first guiding aperture is positioned relative to the distal femur based at least on the determined placement of the guide; placing a member in the first hole formed into the bone near the knee joint surface; and preparing the bone with the placed member in the first hole, including; guiding a patient-specific procedure with the placed member as determined by a preoperative configuring of the first guiding aperture on the guide to correspond to the patient-specific procedure, and preparing a portion of the distal femur relative to the knee joint surface and performing a procedure relative to the knee joint surface after placing the member. - View Dependent Claims (20)
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Specification