Systems and methods for performing spine surgery
AssigneeNuVasive, Inc.
InventorsThomas Scholl, Autumn Sutterlin, Elizabeth Blaylock, Donald J Blaskiewicz, Neill M Wright, Robert E Isaacs
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Abstract
Systems and methods for a spinal surgical procedure are described. Specifically systems and methods for calculating global spinal alignment are described.
Claims20
A system for global alignment of a spine during spinal surgery, the system comprising an imaging device, a spatial tracking system, a rod bending device, a mobile hand held communication device configured to calculate one or more cervical parameters based on identification of spinal markers in a preoperative image, wherein the spinal markers correspond to (i) cervical vertebrae and (ii) the first thoracic vertebra, and a control unit configured to:
- receive the one or more cervical parameters;
- receive a planned target value of one or more spinal parameters;
- based on the planned target value of the one or more spinal parameters, determine one or more ranges corresponding to a desired correction in at least one of (i) a sagittal alignment and (ii) a coronal alignment of the spine;
- capture, via the imaging device, one or more intraoperative fluoroscopy images;
- measure an intraoperative value of the one or more spinal parameters according to the one or more captured intraoperative fluoroscopy images;
- compare the intraoperative value of the one or more spinal parameters with the planned target value of the spinal parameters and the one or more cervical parameters;
- based on the comparison, determine that the intraoperative value of the one or more spinal parameters is within the one or more ranges and receive, via the spatial tracking system, a measurement of a location of one or more screws;
- and
- calculate an instruction to bend a rod, via the rod bending device, to the location of the one or more screws.
A system for use during a surgical procedure, the system comprising:
- an imaging device;
- a rod bending device;
- a mobile hand held communication device configured to calculate one or more cervical parameters based on identification of spinal markers in a preoperative image, wherein the spinal markers correspond to (i) cervical vertebrae and (ii) the first thoracic vertebra;
- a control unit configured to:
- obtain one or more preoperative measurements of an anatomical parameter of a patient and the one or more cervical parameters;
- obtain one or more planned target measurements of the anatomical parameter;
- obtain an intraoperative image from the imaging device;
- measure an intraoperative measurement of the anatomical parameter according to the intraoperative image;
- compare the intraoperative measurement of the anatomical parameter with the one or more planned target measurements of the anatomical parameter and the one or more cervical parameters;
- based on the comparison, determine that the intraoperative measurement of the anatomical parameter is within one or more ranges corresponding to a desired correction in at least one of (i) a sagittal alignment and (ii) a coronal alignment of the spine;
- and
- calculate an instruction for bending a surgical rod.
A method for assessing global alignment of a spine during a surgical procedure, the method comprising:
- inputting a planned target value of one or more spinal parameters into a control unit;
- providing one or more cervical parameters based on identification of spinal markers in a preoperative image to the control unit, wherein the spinal markers correspond to (i) cervical vertebrae and (ii) the first thoracic vertebra;
- providing one or more intraoperative fluoroscopy images to the control unit;
- measuring an intraoperative value of the one or more spinal parameters according to the one or more intraoperative fluoroscopy images;
- comparing the intraoperative value of the one or more spinal parameters with the planned target value of the spinal parameters and the one or more cervical parameters;
- based on the comparison, determining that the intraoperative value of one or more spinal parameters is within one or more ranges corresponding to a desired correction in at least one of (i) a sagittal alignment and (ii) a coronal alignment of the spine;
- measuring a location of one or more screws;
- calculating an instruction to bend a rod to the location of the one or more screws;
- and
- bending the rod according to the instruction.
Dependencies are inferred from the claim text.