US 12,239,384 B2
Computer-based platform for implementing an intra-operative surgical plan during a total joint arthroplasty
Laurent Angibaud, Gainesville, FL (US); and Cyril Hamad, Meylan (FR)
Assigned to Exactech, Inc., Gainesville, FL (US)
Filed by EXACTECH, INC., Gainesville, FL (US)
Filed on Nov. 11, 2022, as Appl. No. 18/054,653.
Claims priority of provisional application 63/346,095, filed on May 26, 2022.
Claims priority of provisional application 63/300,190, filed on Jan. 17, 2022.
Claims priority of provisional application 63/278,683, filed on Nov. 12, 2021.
Prior Publication US 2023/0149090 A1, May 18, 2023
Int. Cl. A61B 34/10 (2016.01); A61B 34/00 (2016.01)
CPC A61B 34/10 (2016.02) [A61B 34/25 (2016.02); A61B 2034/102 (2016.02); A61B 2034/105 (2016.02); A61B 2034/107 (2016.02); A61B 2034/252 (2016.02); A61B 2034/256 (2016.02); A61B 2034/258 (2016.02)] 13 Claims
OG exemplary drawing
 
1. A method, comprising:
obtaining a patient-specific post-surgery desired functional profile of a joint of a patient after a surgical procedure of an implantation of an implant;
wherein the joint comprises a first bone member and a second bone member;
wherein the patient-specific post-surgery desired functional profile comprises at least one functional parameter value for at least one functional parameter representative of an expected functional performance of the joint after the implantation;
obtaining a surgeon-specific surgery profile of a surgeon;
wherein the surgeon-specific surgery profile comprises a plurality of ranges of surgeon-specific surgery guidance values for each of a plurality of surgical parameters for the implantation of at least one part of the implant chosen from a plurality of implants;
wherein the plurality of surgical parameters comprises:
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 of at least one of the first bone member or the second bone member,
a flexion angle of at least one of the first bone member or the second bone member, or
an axial rotation angle of at least one of the first bone member or the second bone member;
wherein the plurality of ranges of the surgeon-specific surgery guidance values comprises:
a first range of surgeon-specific surgery guidance values for the at least one resection associated with at least one of the first bone member or the second bone member,
a second range of surgeon-specific surgery guidance values for the at least one position of at least one part of at least one of the first bone member or the second bone member within the joint,
a third range of surgeon-specific surgery guidance values for the alignment angle of at least one of the first bone member or the second bone member,
a fourth range of surgeon-specific surgery guidance values for the flexion angle of at least one of the first bone member or the second bone member, or
a fifth range of surgeon-specific surgery guidance values for the axial rotation angle of at least one of the first bone member or the second bone member;
wherein the plurality of ranges of the surgeon-specific surgery guidance values for each of the plurality of surgical parameters comprises an acceptable range in each of the plurality of ranges of the surgeon-specific surgery guidance values;
cutting the first bone member during the surgical procedure;
placing a distractor between the first bone member and the second bone member to apply, during at least one movement, a distraction force between the first bone member and the second bone member;
obtaining bone registration data for the first bone member of the patient and the second bone member of the patient;
obtaining, based on the bone registration data, a first bone member representation of the first bone member and a second bone member representation of the second bone member within at least one coordinate system;
obtaining, during the surgical procedure, patient-specific movement-related data after the first bone member of the joint, the second bone member of the joint, or both, have been put through the at least one movement when the distraction force is applied, between the first bone member and the second bone member, throughout a continuous range of motions;
wherein the patient-specific movement-related data represents a plurality of spatial poses of at least one first feature associated with the first bone member, at least one second feature associated with the second bone member, at least one third feature associated with the joint, or any combination thereof;
obtaining, from the patient-specific movement-related data, a personalized flexion angle of the joint;
obtaining a patient-specific surgeon-specific surgical plan based on a plurality of inputs into a surgical plan model;
wherein the patient-specific surgeon-specific surgical plan comprises an estimated patient-specific surgeon-specific value for each of the plurality of surgical parameters;
wherein the plurality of inputs comprises:
the plurality of ranges of the surgeon-specific surgery guidance values for each of the plurality of surgical parameters,
the at least one functional parameter value for the at least one functional parameter representative of the expected functional performance of the joint after the implantation,
the first and the second bone member representations,
the personalized flexion angle of the joint, and
the patient-specific movement-related data;
wherein 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:
the plurality of surgical parameters,
the at least one functional parameter representative of the expected functional performance of the joint,
the personalized flexion angle of the joint, and
the patient-specific movement-related data, and
determine the estimated patient-specific surgeon-specific value for each of the plurality of surgical parameters in a compensated set of surgical cut parameters from the plurality of surgical parameters, compensated by the personalized flexion angle of the joint, to consider during the surgical procedure;
obtaining the estimated patient-specific surgeon-specific value for each of the plurality of surgical parameters in the compensated set of surgical cut parameters of the patient-specific surgeon-specific surgical plan from at least one interactive graphical user interface (GUI) on a surgery assistant device; and
cutting the second bone member at the joint based on the estimated patient-specific surgeon-specific values in the compensated set of surgical cut parameters of the patient-specific surgeon-specific surgical plan, compensated by the personalized flexion angle of the joint, to consider during the surgical procedure.