Orthopedic system for pre-operative, intra-operative, and post-operative assessment

An orthopedic system for intra-operative and post-operative measurement comprising:

• a first screw configured to be implanted in a femur of a musculoskeletal system, wherein the first screw includes:
• a coil antenna provided inside of the first screw,
• a printed circuit board including a secondary antenna provided inside of the first screw, wherein the coil antenna surrounds the printed circuit board, and
• a first inertial measurement unit provided inside of the first screw, wherein the coil antenna is configured to generate a predetermined current and harvest radio frequency energy to enable first electronic circuitry, the secondary antenna is configured for wireless communication, and the first inertial measurement unit is configured to perform at least one task;
• a second screw configured to be implanted in a tibia of a musculoskeletal system, wherein the second screw is configured to harvest radio frequency energy to enable second electronic circuitry, and the second screw includes a second inertial measurement unit configured to perform at least one task;
• a first washer coupled to the first screw and including at least one washer antenna configured to communicate with the coil antenna of the first screw;
• and
• a computer configured to receive measurement data from the first screw or the second screw, wherein the computer is configured to determine movement of a knee joint of a leg based on the received measurement data, and wherein the measurement data is collected by the first inertial measurement unit and the second inertial measurement unit.

An orthopedic system for pre-operative, intra-operative and post-operative measurement comprising:

• a first screw configured to couple to a first bone of a musculoskeletal system, wherein the first screw includes:
• at least one first antenna configured to operate at two or more frequencies and harvest radio frequency energy to enable first electronic circuitry, and
• a first inertial measurement unit configured to perform at least one task;
• a second screw configured to couple to a second bone of a musculoskeletal system, wherein the second screw is configured to harvest radio frequency energy to enable second electronic circuitry, and the second screw includes a second inertial measurement unit configured to perform at least one task;
• a first washer coupled to the first screw and including at least one second antenna configured to communicate with the at least one first antenna of the first screw;
• and
• a computer configured to receive first measurement data from the first screw or the second screw, wherein the first screw and the second screw are configured to monitor movement of the first bone relative to the second bone.