Systems and methods for navigated reaming of the acetabulum
AssigneesSmith & Nephew, Inc., Smith & Nephew Orthopaedics AG, Smith & Nephew Asia Pacific Pte. Limited
InventorsBranislav JARAMAZ, Rahul KHARE, Constantinos NIKOU, Samuel C. DUMPE
Life of this patent
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Abstract
Systems and methods for real-time navigation of reaming of an acetabulum are disclosed. A first tracking element is interfaced to a reamer. A second tracking element is interfaced at or near the acetabulum. The first tracking element can be interfaced to an outer casing surrounding a portion of the shaft of the reamer. A depth and a tilt angle of the reamer with respect to the acetabulum are determined, based on a location of the first and second tracking elements. Based on a surgical plan, the depth and the tilt angle, the volume of removed bone from the acetabulum can also be determined.
Claims12
A method of performing navigated reaming of an acetabulum, the method comprising:
- receiving a surgical plan, wherein the surgical plan comprises one or more patient-specific parameters associated with a total hip arthroplasty, wherein the one or more patient-specific parameters comprise a planned implant location and orientation;
- receiving a three-dimensional model of at least a portion of the acetabulum;
- providing a first tracking element associated with a reamer;
- providing a second tracking element associated with the acetabulum;
- receiving information associated with a geometry of the reamer;
- determining at least one of a depth and a tilt angle of the reamer with respect to the acetabulum and the planned implant location and orientation based on a location of the first tracking element, a location of the second tracking element, and the information associated with the geometry of the reamer;
- and
- modifying the three-dimensional model based on at least one of the depth and the tilt angle.
A method of performing navigated reaming of a patient’s bone, the method comprising:
- receiving a surgical plan, wherein the surgical plan comprises one or more patient-specific parameters associated with a total hip arthroplasty, wherein the one or more patient-specific parameters comprise a planned implant location and orientation;
- providing a first tracking element associated with a reamer;
- providing a second tracking element registered with respect to the planned implant location and orientation;
- receiving information associated with a geometry of the reamer;
- and
- determining at least one of a depth and a tilt angle of the reamer with respect to the planned implant location and orientation based on a location of the first tracking element, a location of the second tracking element, and the information associated with the geometry of the reamer.
Dependencies are inferred from the claim text.