System and method to change a contact point of the muscular-skeletal system

摘要

A system and method for adjusting a contact point of a joint is disclosed. The system comprises a prosthetic component having sensors therein and a remote system to receive and display sensor data. A plurality of sensors of the prosthetic component provide data related to load magnitude and position of load applied to a surface of the prosthetic component. The prosthetic component further includes one or sensors that provide position, rotation, and tilt data. Adjustment of the contact point of the prosthetic component can be performed by repositioning the prosthetic component relative to a bone to which it is coupled. For example, a prosthetic component can be pinned to the bone allowing rotation of the prosthetic component relative to the bone in-situ. A remote system receives sensor data from the prosthetic component allowing viewing of the load magnitude, position of load, and rotation of the prosthetic component.

主权项

1. A method of changing a contact point of a joint in the muscular-skeletal system using quantitative measurements comprising the steps of:
placing a sensored prosthetic component in the joint wherein the sensored prosthetic component has an articular surface and wherein a plurality of load sensors couple to the articular surface; measuring a load magnitude with each of the plurality of load sensors applied by the muscular-skeletal system to the articular surface wherein the sensored prosthetic component includes electronic circuitry coupled to the load plurality of sensors, an inertial sensor, and a power source and wherein the electronic circuitry is configured to control a measurement process; measuring a reference position of the sensored prosthetic component relative to a bone wherein the sensored prosthetic component is coupled to the bone and wherein the inertial sensor is configured to measure the reference position; transmitting measurement data from the sensored prosthetic component to a processor wherein the measurement data is stored in memory coupled to the processor wherein the processor is configured to calculate a contact point from the measurement data; displaying the articular surface of the sensored prosthetic component on a display coupled to the processor wherein the display indicates the contact point on the articular surface; and repositioning the sensored prosthetic component from the reference position relative to the bone; and displaying movement of the contact point on the display in real-time as the sensored prosthetic component is repositioned wherein the inertial sensor is configured to measure the movement from the reference position.