Abstract: Technologies for non-visual monitoring of an orthopaedic surgical procedure includes determining a difference between a measured or sensed value of an aspect of the orthopaedic surgical procedure and a target value of the aspect of the orthopaedic surgical procedure. A non-visual indicator is activated to produce a non-visual indication having a characteristic that is dependent on a magnitude of the difference between the measured or sensed value and the target value. In some embodiments, the aspect of the orthopaedic surgical procedure may include as a force established between a patient's tibia and femur. In other embodiments, the aspect the orthopaedic surgical procedure may include a location of a femoral broach relative to the patient's boney anatomy.