Systems and methods for planning and performing image free implant revision surgery
AssigneeBlue Belt Technologies, Inc.
InventorsBranislav Jaramaz, Alberto Gregori
Life of this patent
Estimating the term…
Abstract
Systems and methods for planning and performing image free implant revision surgery are discussed. For example, a method for generating a revision plan can include collecting pre-defined parameters characterizing a target bone, generating a 3D model, collecting a plurality of surface points, and generating a reshaped 3D model. Generating the 3D model of the target bone can be based on a first portion of the pre-defined parameters. Generating the reshaped 3D model can be done based on the plurality of surface points collected from a portion of the surface of the target bone.
Claims17
A method of revising a total knee arthroplasty, the method comprising:
- preparing, using a portion of a surgical instrument, a virtual three-dimensional model of an existing implant within a target bone, wherein the surgical instrument comprises a point probe, a first tracking array, and a cutting burr;
- removing the existing implant from the target bone;
- installing a second tracking array on a portion of the target bone;
- preparing, using the point probe, a virtual three-dimensional model of the target bone following removal of the existing implant;
- removing an unwanted portion of the target bone;
- preparing, using the point probe, a virtual three-dimensional model of the target bone following removal of the unwanted portion;
- generating a surgical plan using a surgical system, wherein the surgical plan comprises:
- removing, using the cutting burr of the surgical instrument, a portion of the target bone according to a bone refinement plan, and
- selecting and planning a fit of a revision implant and, optionally, at least one augment, and
- wherein the surgical plan is based on at least one of the virtual three-dimensional model of the existing implant within the target bone, the virtual three-dimensional model of the target bone following removal of the existing implant, and the virtual three-dimensional model of the target bone following removal of the unwanted portion;
- tracking a three-dimensional location and an orientation of each of the surgical instrument, the target bone, and the revision implant using a surgical navigation system;
- and
- implanting the revision implant and, optionally, the at least one augment, according to the surgical plan.
A system for revising a total knee arthroplasty, the system comprising:
- a tracking system comprising a tracking sensor;
- a surgical instrument comprising a cutting burr and a tracking array, wherein the tracking system is configured to monitor a current three-dimensional surgical instrument position and a current three-dimensional target bone position;
- a control system comprising a communication interface and at least one processor coupled to a memory device, wherein the control system is coupled to the tracking system and is configured to receive tracking information identifying the current three-dimensional surgical instrument position and the current three-dimensional target bone position;
- and
- a revision total knee implant and, optionally, at least one augment.
Dependencies are inferred from the claim text.