Surgical system
In some examples, patient-specific data can be received for a patient's joint. A virtual model of at least part of the patient's joint and associated musculature can be constructed based at least partially on the patient specific data and an implant configuration. A post-operative muscle moment capacity for the patient's joint can be calculated based at least partially on the virtual model. Muscle moment capacity curves and their use to estimate post-operative function are also disclosed.
1 . A method of generating a patient-specific surgical plan for a patient's joint, the method comprising:
receiving patient-specific radiological data for the patient's joint, segmenting the radiological data via a processor to construct a 3D musculoskeletal model;
calculating a post-operative muscle moment capacity over a target range of motion defined by a physiological task;
optimizing a 3D coordinate position of an implant configuration by iteratively adjusting the 3D coordinate position within the 3D musculoskeletal model until the calculated post-operative muscle moment capacity meets a target physiological threshold; and
outputting a surgical plan comprising the optimized 3D coordinate position for the implant configuration.
2 . The method of claim 1 , wherein the patient-specific radiological data comprises muscle data, bone data, or tendon data.
3 . The method of claim 1 , wherein the 3D musculoskeletal model comprises a volumetric representation of a muscle.
4 . The method of claim 3 , wherein calculating the post-operative muscle moment capacity comprises simulating a change in muscle fibre length as a function of joint angle.
5 . The method of claim 1 , wherein the method further comprises calculating a post-operative net joint capacity based at least partially on the post-operative muscle moment capacity.
6 . The method of claim 1 , wherein the method further comprises calculating a joint contact force.
7 . The method of claim 1 , wherein the method further comprises determining an implant-on-implant contact force.
8 . The method of claim 1 , wherein the method further comprises outputting a suitability score for the implant configuration based at least partially on the calculated post-operative muscle moment capacity.
9 . The method of claim 1 , wherein the method further comprises providing an implant recommendation based at least partially on the calculated post-operative muscle moment capacity.
10 . The method of claim 1 , wherein the method further comprises generating a post-operative rehabilitation plan by mapping the optimized muscle moment capacity to a set of physical therapy exercises designed to strengthen specific muscle groups identified as having sub-optimal capacity in the 3D musculoskeletal model.
11 . A system comprising:
at least one processor; and
memory storing data instructions that when executed by the at least one processor cause the at least one processor to:
receive patient-specific radiological data for a patient's joint;
calculate a post-operative muscle moment capacity over a target range of motion defined by a physiological task;
optimize a 3D coordinate position of an implant configuration by iteratively adjusting the 3D coordinate position within a 3D musculoskeletal model until the calculated post-operative muscle moment capacity meets a target physiological threshold; and
output a surgical plan comprising the optimized 3D coordinate position for the implant configuration.
12 . The system of claim 11 , wherein the patient-specific radiological data comprises muscle data, bone data, or tendon data.
13 . The system of claim 11 , wherein the 3D musculoskeletal model comprises a volumetric representation of a muscle.
14 . The system of claim 13 , wherein calculating the post-operative muscle moment capacity comprises simulating a change in muscle fibre length as a function of joint angle.
15 . The system of claim 11 , wherein the processor is further configured to calculate a post-operative net joint capacity based at least partially on the post-operative muscle moment capacity.
16 . The system of claim 11 , wherein the processor is further configured to calculate a joint contact force.
17 . The system of claim 11 , wherein the processor is further configured to determine an implant-on-implant contact force.
18 . The system of claim 11 , wherein the processor is further configured to output a suitability score for the implant configuration based at least partially on the calculated post-operative muscle moment capacity.
19 . The system of claim 11 , wherein the processor is further configured to output an implant recommendation based at least partially on the calculated post-operative muscle moment capacity.
20 . The system of claim 11 , wherein the processor is further configured to generate a post-operative rehabilitation plan by mapping the optimized muscle moment capacity to a set of physical therapy exercises designed to strengthen specific muscle groups identified as having sub-optimal capacity in the 3D musculoskeletal model.