Elastography for ligament characterization
AssigneesSmith & Nephew, Inc., Smith & Nephew Orthopaedics AG, Smith & Nephew Asia Pacific Pte. Limited
InventorsBrian W. McKinnon, Daniel Farley
Life of this patent
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Abstract
Methods and system for characterizing ligament properties using elastography are disclosed. An ultrasound system capable of performing shear wave elasticity imaging and/or supersonic shear imaging may retrieve one or more images from a proposed surgical site. The one or more images may be provided to a surgical planning system that identifies one or more properties of ligaments proximate to the surgical site. Musculoskeletal simulations may be performed using the identified properties to preoperatively identify a surgical plan. Preoperative identification of a surgical plan may enable a surgeon to select from more fine-tuning options for a joint replacement than conventional systems.
Claims20
A surgical system for planning a surgical procedure for an anatomy of a patient using a patient-specific model of the anatomy, the surgical system comprising:
- an imaging system configured to obtain an image of the anatomy, the anatomy comprising a ligament;
- a computer system coupled to the imaging system, the computer system configured to:
- receive the image from the imaging system,
- determine a mechanical property of the ligament based on the received image, wherein the mechanical property comprises an elasticity of the ligament,
- perform a musculoskeletal simulation on the patient-specific model using the determined mechanical property, the musculoskeletal simulation configured to simulate the effects of performing one or more procedures upon the anatomy that are configured to balance strains in collateral ligaments of the patient, and
- update a surgical plan based on the performed musculoskeletal simulation, wherein the update to the surgical plan comprises a modification to a surgical step for a bone associated with the surgical plan.
A method for planning a surgical procedure for an anatomy of a patient using a patient-specific model of the anatomy, the method comprising:
- receiving, by a computer system, an image of the anatomy from an imaging system, the anatomy comprising a ligament;
- determining a mechanical property of the ligament based on the received image, wherein the mechanical property comprises an elasticity of the ligament;
- performing a musculoskeletal simulation on the patient-specific model using the determined mechanical property, the musculoskeletal simulation configured to simulate the effects of performing one or more procedures upon the anatomy that are configured to balance strains in collateral ligaments of the patient;
- and
- updating a surgical plan based on the performed musculoskeletal simulation, wherein the update to the surgical plan comprises a modification to a surgical step for a bone associated with the surgical plan.
Dependencies are inferred from the claim text.