Method and apparatus for judging implant orientation data
AssigneesSmith & Nephew, Inc., Smith & Nephew Asia Pacific Pte. Limited, Smith & Nephew Orthopaedics AG
InventorsLars Dohmen, Mario Schubert, Anna Wiedenmann
Life of this patent
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Abstract
A data processing method performed by a computer for judging implant orientation data representing an orientation of a first implant part relative to a first bone, the first implant part being part of an implant pair which further comprises a second implant part for a second bone, the implant pair being envisaged to be implanted in a patient.
Claims23
A data processing method performed by a computer for judging implant orientation data representing an orientation of a first implant part relative to a first bone, the first implant part being part of an implant pair which further comprises a second implant part for a second bone, the implant pair configured to be implanted in a patient, comprising the steps of:
- acquiring the implant orientation data;
- acquiring second implant orientation data representing an orientation of the second implant part relative to the second bone;
- acquiring implant shape data representing a shape of the first implant part and a shape of the second implant part;
- acquiring activity data representing at least one desired activity of the patient to be possible after implanting the implant pair, wherein each of the at least one desired activity has an associated range of motion between the first bone and the second bone;
- calculating a range of motion volume, which represents possible orientations between the first bone and the second bone over three rotational axes, from the implant orientation data, the second implant orientation data and the implant shape data;
- displaying the range of motion volume and the associated range of motion corresponding to each of the at least one desired activity;
- and
- judging the implant orientation data to be feasible if the associated range of motion corresponding to each of the at least one desired activity lies within the range of motion volume.
A data processing method performed by a computer for judging implant orientation data representing an orientation of a first implant part relative to a first bone, the first implant part being part of an implant pair which further comprises a second implant part for a second bone, the implant pair configured to be implanted in a patient, comprising the steps of:
- acquiring the implant orientation data;
- acquiring second implant orientation data representing an orientation of the second implant part relative to the second bone;
- acquiring implant shape data representing a shape of the first implant part and a shape of the second implant part;
- acquiring activity data representing at least one desired activity of the patient to be possible after implanting the implant pair, wherein each of the at least one desired activity has an associated range of motion between the first bone and the second bone;
- transforming the associated range of motion corresponding to each of the at least one desired activity into an implant range of motion which defines a corresponding range of motion between the first implant part and the second implant part, by use of the implant orientation data and the second implant orientation data;
- calculating an implant range of motion volume, which represents possible orientations between the first implant part and the second implant part over three rotational axes, from the implant shape data;
- displaying the implant range of motion volume and the implant range of motion corresponding to each of the at least one desired activity;
- and
- judging the implant orientation data to be feasible if the implant range of motion corresponding to each of the at least one desired activity lies within the implant range of motion volume.
A non-transitory computer readable storage medium comprising a computer program which, when running on a computer or when loaded onto a computer, is configured to cause the computer to perform a data processing method for judging implant orientation data representing an orientation of a first implant part relative to a first bone, the first implant part being part of an implant pair which further comprises a second implant part for a second bone, the implant pair configured to be implanted in a patient, comprising the steps of:
- acquiring the implant orientation data;
- acquiring second implant orientation data representing an orientation of the second implant part relative to the second bone;
- acquiring implant shape data representing a shape of the first implant part and a shape of the second implant part;
- acquiring activity data representing at least one desired activity of the patient to be possible after implanting the implant pair, wherein each of the at least one desired activity has an associated range of motion between the first bone and the second bone;
- calculating a range of motion volume, which represents possible orientations between the first bone and the second bone over three rotational axes, from the implant orientation data, the second implant orientation data and the implant shape data;
- displaying the range of motion volume and the associated range of motion corresponding to each of the at least one desired activity;
- and
- judging the implant orientation data to be feasible if the associated range of motion corresponding to each of the at least one desired activity lies within the range of motion volume.
A method performed by at least one processor for planning an implant orientation, the method comprising:
- receiving implant data comprising characteristics of a fixed implant, characteristics of an adjustable implant, and an orientation of the fixed implant relative to a first bone;
- receiving activity data comprising one or more post-operative activities;
- identifying, based on the activity data, a required range of motion for each of the one or more post-operative activities;
- calculating, based on the implant data, range of motion values for one or more proposed orientations of the adjustable implant relative to a second bone, wherein the range of motion values are associated with one or more possible orientations between the fixed implant and the adjustable implant with respect to each of one or more rotational axes;
- determining, based on the range of motion values, whether any of the one or more proposed orientations have range of motion values that encompass the required range of motion for each of the one or more post-operative activities;
- and
- providing, based on said determination, planning information comprising an orientation between the adjustable implant and the second bone.
Dependencies are inferred from the claim text.