Systems and methods for patient-based computer aided surgical procedures
Systems and methods for positioning a cut guide using navigation-based techniques are discussed. For example, a system for use in an orthopedic surgery on a target bone can comprise a cut guide adjustably positionable onto the target bone via two or more coupling receptacles created on the target bone. The coupling receptacles can include one or more guide members and a plurality of landing members. The system also includes an input interface that can receive a target bone representation, and a model receiver module that can receive a generic post-coupling bone model. The target bone representation can include a data set representing two or more landing sites of the target bone, and the generic post-coupling bone model can include a data set representing a bone having two or more coupling receptacles each sized, shaped or otherwise configured to receive and secure the respective coupling feature of the landing members. The system can include a navigation-based guide coupling preparation system that can generate a plan for positioning the cut guide onto or conforming to the target bone. The system can further include a display module that provides presentations of the coupling between the target bone and the cut guide.
1. A system for use in orthopedic surgery on a target bone, the system comprising:
a cut guide configured to be adjustably positioned onto the target bone, the cut guide comprising:
a guide body having one or more guide members for guiding a cutting tool along a planar cutting trajectory, and
a plurality of landing members, each of the plurality of landing members being a structure separate from the guide body and fixable onto an exterior of the guide body so as to couple the guide body onto the target bone;
a surgical system comprising:
a processing device configured to generate a cut guide positioning plan, wherein the cut guide positioning plan is generated at least in part using a bone model based on a data set representing a bone having an anatomical origin comparable to the target bone to be altered by the system, and
a computer-controlled robotic arm configured to assist an operator in positioning the cut guide onto the target bone based on the cut guide positioning plan;
wherein the cutting tool is configured to be operated manually by an operator to resect the target bone.
2. The system of claim 1 , wherein the processing device is further configured to generate a surgical plan for altering a portion of the target bone when the cut guide is securely positioned onto the target bone.
3. The system of claim 2 , wherein the cutting tool is configured to be positioned within the one or more guide members for resecting the target bone based on the surgical plan.
4. The system of claim 2 , wherein the processing device is further configured to receive the bone model as at least one of a parametric model, a statistical model, or a statistical shape model.
5. The system of claim 1 , wherein the target bone comprises a femur.
6. The system of claim 1 , wherein the planar cutting trajectory corresponds to a distal femur cut in a total knee arthroplasty procedure.
7. The system of claim 1 , wherein the target bone comprises a tibia.
8. The system of claim 1 , wherein the surgical system is further configured to intraoperatively modify the cut guide positioning plan.
9. The system of claim 1 , wherein the surgical system further comprises a communication interface configured to display a real time perioperative target bone representation to assist the operator during positioning of the cut guide onto the bone and to display the planned planar cutting trajectory of the bone.
10. The system of claim 1 , wherein the processing device is further configured to generate the bone model using image data consisting of two-dimensional image data of the target bone.
11. The system of claim 1 , wherein the plurality of landing members are pins configured to couple the guide body onto the target bone.