Computer-based platform for implementing an intra-operative surgical plan during a total joint arthroplasty
Inventors
Angibaud, Laurent • Hamad, Cyril
Assignees
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Publication Number
US-12239384-B2
Publication Date
2025-03-04
Expiration Date
Abstract
A method includes receiving by a controller, a surgeon-specific surgery profile for an implantation of an implant into a joint, implant profiles, a patient-specific post-surgery desired functional profile of the joint after the implantation, and bone registration data for a first bone member and a second bone member of a patient are inputted into a surgical plan model to generate a surgical plan. The surgical plan model is designed to achieve the patient-specific post-surgery desired functional profile based at least in part on a plurality of dependencies between a plurality of surgical parameters, the implant profiles, at least one functional parameter representative of the expected functional performance of the joint, and movement-related data of the joint. The surgical plan is outputted on a graphical user interface (GUI) on a surgery assistant device to facilitate the implantation.
Core Innovation
A method obtains a patient-specific post-surgery desired functional profile of a joint after a surgical procedure of implantation of an implant, where the joint comprises a first bone member and a second bone member. The patient-specific post-surgery desired functional profile comprises at least one functional parameter value representative of expected functional performance of the joint after the implantation, and the method also obtains a surgeon-specific surgery profile comprising plurality of ranges of surgeon-specific surgery guidance values for surgical parameters for the implantation of at least one part of the implant chosen from plurality of implants.
The method defines the plurality of surgical parameters to comprise at least one resection associated with at least one of the first bone member or the second bone member, at least one position of at least one of the first bone member or the second bone member within the joint, an alignment angle, a flexion angle, or an axial rotation angle of at least one of the first bone member or the second bone member. The plurality of ranges of the surgeon-specific surgery guidance values comprises an acceptable range in each range, and the method cuts the first bone member during the surgical procedure and places a distractor between the first bone member and the second bone member to apply a distraction force during at least one movement.
The method obtains bone registration data for the first bone member and the second bone member and obtains, based on the bone registration data, first and second bone member representations within at least one coordinate system. During the surgical procedure, the method obtains patient-specific movement-related data after the bone members have been put through the movement with the distraction force applied, throughout a continuous range of motions, and the patient-specific movement-related data represents plurality of spatial poses of features associated with the bone members and/or the joint.
From the patient-specific movement-related data, the method obtains a personalized flexion angle of the joint, obtains a patient-specific surgeon-specific surgical plan based on plurality of inputs into a surgical plan model, and determines estimated patient-specific surgeon-specific values for the surgical parameters in a compensated set of surgical cut parameters compensated by the personalized flexion angle. The method achieves the patient-specific post-surgery desired functional profile based at least in part on plurality of dependencies between the surgical parameters, the at least one functional parameter representative of expected functional performance, the personalized flexion angle of the joint, and the patient-specific movement-related data, and cuts the second bone member based on the estimated patient-specific surgeon-specific values obtained from at least one interactive graphical user interface on a surgery assistant device.
Claims Coverage
The partial content provides one independent claim: clm-00001. The main inventive features are centered on generating a patient-specific surgeon-specific surgical plan using surgeon-specific guidance ranges, a patient-specific desired functional profile, patient-specific movement-related data under a distraction force, and a surgical plan model that outputs compensated surgical cut parameters for bone cutting, including interactive GUI acquisition of estimated values.
Patient-specific desired functional profile with surgeon-specific guidance ranges
obtaining a patient-specific post-surgery desired functional profile of a joint after implantation, and obtaining a surgeon-specific surgery profile comprising plurality of ranges of surgeon-specific surgery guidance values for surgical parameters for implantation of at least one part of an implant chosen from a plurality of implants, where each range includes an acceptable range.
Distraction-force movement data and personalized flexion angle
placing a distractor between first and second bone members to apply a distraction force during at least one movement, obtaining bone registration data and corresponding bone member representations within at least one coordinate system, obtaining patient-specific movement-related data during surgery after the bone members are put through the movement throughout a continuous range of motions, and obtaining, from the patient-specific movement-related data, a personalized flexion angle of the joint.
Surgical plan model using dependencies and compensated surgical cut parameters
obtaining a patient-specific surgeon-specific surgical plan based on plurality of inputs into a surgical plan model, where the surgical plan model is designed to achieve the patient-specific post-surgery desired functional profile based at least in part on plurality of dependencies between the plurality of surgical parameters, the at least one functional parameter representative of expected functional performance, the personalized flexion angle of the joint, and the patient-specific movement-related data, and determining estimated patient-specific surgeon-specific values for each surgical parameter in a compensated set of surgical cut parameters compensated by the personalized flexion angle of the joint.
Interactive GUI obtaining estimated values and cutting the second bone member
obtaining the estimated patient-specific surgeon-specific values for each surgical parameter in the compensated set of surgical cut parameters from at least one interactive graphical user interface on a surgery assistant device, and cutting the second bone member at the joint based on the estimated values in the compensated set of surgical cut parameters compensated by the personalized flexion angle of the joint.
Across the independent claim, the invention combines surgeon-specific guidance ranges and patient-specific desired functional profile targets with distraction-force continuous motion data to derive a personalized flexion angle. A surgical plan model then determines estimated patient-specific surgeon-specific values for surgical parameters in compensated surgical cut parameters, which are obtained via an interactive GUI and used to cut the second bone member.
Stated Advantages
Documented Applications
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