Patent ID: 7922774

Claim:
A method for aligning a prosthesis, comprising: coupling a transducer that measures moments in an anterior/posterior plane and right/left plane to a prosthesis, wherein the prosthesis includes a first load bearing surface that is supported on a second load bearing surface, wherein the surfaces provide articulation in the anterior/posterior plane and the right/left plane, and wherein the prosthesis has an initial alignment; attaching the prosthesis to a patient; obtaining signals representative of moments in the anterior/posterior plane and right/left plane as the patient walks along a line of progression; comparing the signals representative of moments obtained during walking to a model of alignment; determining a numeric estimation of a geometric misalignment of the prosthesis; and making an adjustment to the prosthesis to change the initial alignment of the prosthesis to bring the initial alignment closer to the alignment represented by the model of alignment.