Effect of pressure sensor feedback on prosthetic socket fabrication

The complex loading that occurs at the residual limb- prosthetic socket interface of a person with an amputation can affect comfort and skin integrity [1]. This study assessed the effect of providing interface pressure measurements to clinicians during the design and fabrication of prosthetic sockets. Three clinicians designed prostheses for the same residual limb model, enabling standardized testing. The socket and limb model were subjected to loading in a material testing machine. Two tests were performed, once after the initial manufacture of the socket had taken place, and then, after pressure feedback was provided and socket modification shad been made. Feedback and resultant modifications resulted in an overall reduction in loading, and a convergence of pressure measurements between clinicians. These results suggest that there is value in providing quantitative pressure feedback during the prosthetic design and manufacturing phase.