Kinetic assessment and alignment of the muscular-skeletal system and method therefor
First Claim
1. A system to support kinetic assessment, joint modification, and installation of a final prosthetic joint comprising:
- a device configured to couple to a joint of a first bone and a second bone to measure load, position of load, and joint alignment, wherein the device includes one or more sensors;
a computer configured to receive measurement data from the one or more sensors of the device, wherein kinetic assessment results in at least one change performed under musculoskeletal loading that affects alignment, whereby a final joint installation has similar loading, position of load, or alignment; and
a display coupled to the computer, wherein the computer is configured to calculate alignment from the measurement data, and wherein the display is configured to display one of a bone offset relative to a mechanical axis or a total offset relative to the mechanical axis generated from the measurement data.
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Accused Products
Abstract
A system is disclosed herein for providing a kinetic assessment and preparation of a prosthetic joint comprising one or more prosthetic components. The system comprises a prosthetic component including sensors and circuitry configured to measure load, position of load, and joint alignment. The system further includes a remote system for receiving, processing, and displaying quantitative measurements from the sensors. The kinetic assessment measures joint alignment under loading that will be similar to that of a final joint installation. The kinetic assessment can use trial or permanent prosthetic components. Furthermore, adjustments can be made to the applied load magnitude, position of load, and joint alignment by various means to fine-tune an installation. The kinetic assessment increases both performance and reliability of the installed joint by reducing error that is introduced by elements that load or modify the joint dynamics not taken into account by prior assessment methods.
166 Citations
19 Claims
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1. A system to support kinetic assessment, joint modification, and installation of a final prosthetic joint comprising:
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a device configured to couple to a joint of a first bone and a second bone to measure load, position of load, and joint alignment, wherein the device includes one or more sensors; a computer configured to receive measurement data from the one or more sensors of the device, wherein kinetic assessment results in at least one change performed under musculoskeletal loading that affects alignment, whereby a final joint installation has similar loading, position of load, or alignment; and a display coupled to the computer, wherein the computer is configured to calculate alignment from the measurement data, and wherein the display is configured to display one of a bone offset relative to a mechanical axis or a total offset relative to the mechanical axis generated from the measurement data. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19)
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Specification