Luke J. Aram - Warsaw IN, US Michael D. Goatbe - Cilo MI, US Carrie A. Leman - Chicago IL, US Ian M. Scott - Warsaw IN, US Graham R. Vincent - Cheshire, GB Kevin M. Auqustine de Souza - Ilkley, GB Gwenael A. Guillard - Stockport, GB
International Classification:
A61B 5/00
US Classification:
378 62, 378207, 378163
Abstract:
An x-ray calibration apparatus includes a radiolucent knee alignment jig configured to receive a knee of a patient and a radiolucent cushion configured to hold a patient's knee at a fixed angle of flexion. The x-ray calibration apparatus also includes a number of radio-opaque fiducial markers positioned within the radiolucent knee alignment jig.