Incorporating High-Fidelity Interface technology into an above knee socket enables the socket to capture and control the underlying femur, which solves many of the problems posed by traditional sockets. High-Fidelity Interface technology employs an alternating compression and release design. In its most common application, four longitudinal struts apply aggressive centripetal (inward) compression, and windows between these struts enable the displaced soft tissue to release outwardly, essentially allowing volume to escape. When motion and force are captured closer to the bone, the prosthesis reacts more precisely and the brain reacts more instinctively. The result is dramatically enhanced performance, greater energy efficiency, security, and safety, increased endurance, greater comfort, and a higher level of confidence for wearers of all activity levels. Less fatigue means potential for increased activity and increased activity means an overall increase in patient blood circulation, which is an important adjunct to overall health. The patient’s ability to wear the prosthesis for longer periods of time may enable faster therapeutic progress and enable the patient to regain their (pre-amputation) independence sooner. The resultant fit, as described by patients, feels as though the prosthesis becomes a part of them instead of feeling like they’re dragging the prosthesis along for the ride.  

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