Systems and methods for measuring performance parameters related to orthopedic arthroplasty

摘要

A knee balancing system for measuring performance parameters associated with an orthopedic articular joint comprises a force sensing module and one or more inertial measurement units. The force sensing module comprises a housing that includes an articular surface having a medial portion and a lateral portion, each of which is substantially mechanically isolated from the other. The force sensing module also includes first and second sets of sensors disposed within the housing. The first set of sensors is mechanically coupled to the medial portion of the articular surface and configured to detect information indicative of a first force incident upon the medial portion of the articular surface. The second set of sensors is mechanically coupled to the lateral portion of the articular surface and configured to detect information indicative of a second force incident upon a lateral portion of the articular surface. The inertial measurement unit is configured to detect information indicative of an orientation of at least one of a first bone and a second bone of a knee joint.

主权项

1. A force and orientation sensing system for measuring performance parameters associated with an orthopedic articular joint, comprising:
a force sensing module comprising:
a housing including an articular surface having a medial portion and a lateral portion, each of which is substantially mechanically isolated from the other;a first set of sensors disposed within the housing, the first set of sensors being mechanically coupled to the medial portion of the articular surface and configured to detect information indicative of a first force incident upon the medial portion of the articular surface; anda second set of sensors disposed within the housing, the second set of sensors being mechanically coupled to the lateral portion of the articular surface and configured to detect information indicative of a second force incident upon the lateral portion of the articular surface, and an orientation sensing module comprising a first orientation sensor and a second orientation sensor, wherein the orientation sensing module is configured to detect, via the first and second orientation sensors, a relative orientation of at least two bones associated with the articular joint, and wherein each of the first and second orientation sensors comprises a gyroscope configured to detect a rate of angular rotation.