Systems and methods for surgical positioning

A system, comprising:

• a surgery table comprising a distal end, a proximal end opposing the distal end, and a platform configured to support at least a portion of the patient;
• a spar base coupled to the surgery table and positioned beneath the platform;
• a spar comprising a distal end and a proximal end opposing the distal end, the proximal end of the spar coupled to and extending from the spar base and configured to support a leg of the patient;
• a foot support coupled to and disposed at the distal end of the spar, the foot support comprising a mu metal pathway and a magnetic field terminus comprising mu metal, the foot support comprising one or more magnets opposite the magnetic field terminus;
• a foot support module coupled to a distal end of the spar, the foot support module comprising a magnetic sensor;
• and
• a drape configured to be placed over the foot support module, the drape defining a sterile space above the drape and a working space below the drape, the foot support configured to be coupled to the foot support module with the drape in between the foot support and the foot support module, the foot support comprised within the sterile space and the foot support module comprised within the working space,
• wherein:
• the one or more magnets are configured to generate a magnetic field in the sterile space, the one or more magnets further configured to selectively move proximal to the mu metal pathway comprised within the foot support and extend the magnetic field through the mu metal pathway to the magnetic field terminus,
• the magnetic field terminus is configured to be moved proximate to the magnetic sensor comprised within the foot support module, and extend the magnetic field across the drape from the sterile space to the working space, and
• the magnetic sensor is configured to be actuated in the working space via the magnetic field extending from the magnetic field terminus to the magnetic sensor.