Elastography for ligament characterization
AssigneesSmith & Nephew, Inc., Smith & Nephew Asia Pacific Pte. Limited, Smith & Nephew Orthopaedics AG
InventorsBrian W. Mckinnon, Daniel Farley
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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 first ligament;
- and
- 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 first ligament relative to a second ligament of the patient based on the received image, wherein the mechanical property comprises an elasticity of the first ligament,
- receive information regarding balancing strains between the first ligament and the second ligament, and
- update a surgical plan based on the received information, 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 first ligament;
- determining a mechanical property of the first ligament relative to a second ligament of the patient based on the received image, wherein the mechanical property comprises an elasticity of the first ligament;
- receiving information regarding balancing strains between the first ligament and the second ligament;
- and
- updating a surgical plan based on the received information, 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.