Abstract
Clinical research into the pathology and treatment of knee disorders is greatly enhanced by the availability of objective data on knee function. A three-dimensional measurement system, using television cameras and force platforms interfaced to a computer, is used to make a combined kinetic and kinematic assessment of the knee. Information is provided on the standing knee alignment, the general gait parameters, and the knee angle and moment when walking, in both sagittal and coronal planes. An example is given of the use of these data in the assessment of unicompartmental knee replacement arthroplasty.