Orthopaedic implant placement system and method
AssigneeDePuy Synthes Products, Inc.
InventorsStephen E. White, William J. Maloney
Life of this patent
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Abstract
A surgical planning computing system and related surgical method include identifying an anatomical landmark of a patient's bony anatomy in a three-dimensional anatomical image and determining positioning criteria for an orthopedic prosthesis to be implanted into the patient's bony anatomy. The positioning criteria may define an alignment between the anatomical landmark and a feature of the orthopaedic prosthesis. A three-dimensional model of the orthopaedic prosthesis is positioned in the three-dimensional model based on the positioning criteria to provide a surgical plan for the implantation of the orthopaedic prosthesis.
Claims20
A surgical planning computing system for generating a surgical plan for an orthopaedic surgical procedure, the surgical planning computing system comprising:
- one or more processors;
- and
- memory having stored therein a plurality of instructions that, in response to execution, cause the surgical planning computing system to:
- identify a dwell point of a medial tibial plateau of a patient's tibia captured in a three-dimensional anatomical image of the patient's bony anatomy;
- identify a center of rotation of a medial condyle of a patient's femur a captured in the three-dimensional anatomical image,
- determine positioning criteria for a medial pivoting orthopaedic prosthesis that is to be used in the orthopaedic surgical procedure, wherein the medial pivoting orthopaedic prosthesis includes a tibial insert and a femoral component and wherein the positioning criteria identifies (i) an alignment between the dwell point of the medial articular surface of the tibial insert and the dwell point of the medial tibial plateau of the patient's tibia and (ii) an alignment of a feature of a medial condyle of the femoral component based on the center of rotation of the medial condyle of the patient's femur,
- position a three-dimensional model of the tibial insert and of the femoral component in the three-dimensional anatomical image based on the positioning criteria to generate an updated three-dimensional anatomical image that includes the three-dimensional model of the orthopaedic prosthesis;
- and
- display the updated three-dimensional anatomical image.
A method for performing an orthopaedic surgery on a patient, the method comprising:
- obtaining a three-dimensional anatomical image of a patient's bony anatomy in which medial pivoting orthopaedic prosthesis is to be implanted during the orthopaedic surgery, wherein the three-dimensional anatomical image includes a three-dimensional image of a tibia and corresponding femur of the patient;
- operating a surgical planning computing system to (i) identify a dwell point of a medial tibial plateau of the patient's tibia in the three-dimensional anatomical image, (ii) identify a center of rotation of a medial condyle of the patient's femur in the three-dimensional anatomical image, (iii) determine positioning criteria for the medial pivoting orthopaedic prosthesis, wherein the medial pivoting orthopaedic prosthesis includes a tibial insert and a femoral component and wherein the positioning criteria identifies (a) an alignment between the dwell point of the medial articular surface of the tibial insert and the dwell point of the medial tibial plateau of the patient's tibia and (b) an alignment of a feature of a medial condyle of the femoral component based on the center of rotation of the medial condyle of the patient's femur, and (iv) position a three-dimensional model of the tibial insert and of the femoral component in the three-dimensional anatomical image based on the positioning criteria to generate an updated three-dimensional anatomical image that includes the three-dimensional model of the orthopaedic prosthesis;
- and
- performing the orthopaedic surgery to implant the orthopaedic prosthesis into the patient's bone using the updated three-dimensional anatomical image as a surgical plan for the orthopaedic surgery.
One or more non-transitory, machine-readable storage media comprising a plurality of instructions stored thereon that, in response to execution by a computing system, cause the computing system to:
- identify a dwell point of a medial tibial plateau of a patient's tibia captured in a three-dimensional anatomical image of the patient's bony anatomy;
- identify a center of rotation of a medial condyle of a patient's femur a captured in the three-dimensional anatomical image,
- determine positioning criteria for a medial pivoting orthopaedic prosthesis that is to be used in the orthopaedic surgical procedure, wherein the medial pivoting orthopaedic prosthesis includes a tibial insert and a femoral component and wherein the positioning criteria identifies (i) an alignment between the dwell point of the medial articular surface of the tibial insert and the dwell point of the medial tibial plateau of the patient's tibia and (ii) an alignment of a feature of a medial condyle of the femoral component based on the center of rotation of the medial condyle of the patient's femur,
- position a three-dimensional model of the tibial insert and of the femoral component in the three-dimensional anatomical image based on the positioning criteria to generate an updated three-dimensional anatomical image that includes the three-dimensional model of the orthopaedic prosthesis;
- and
- display the updated three-dimensional anatomical image.
Dependencies are inferred from the claim text.