Askew, M.J., Lewkowicz, S.Z., Lewis, J.L., Hanmer, R.S., and Wixson, R.L., Three Dimensional Analysis of the Surface Replacement Hip Prosthesis, Proceedings of the 30th Annual Meeting of the Orthopaedic Research Society (ORS), Vol. 9, p. 294, 1984.

Askew, M., Steege, J.W., Lewis, J.L., Ranieri, J.R., and Wixson, R.L., Effect of Cement Pressure and Bone Strength on PMMA Fixation, J. of Orthopaedic Research, Vol. 1, pp. 412-420, 1984.

Childress, D.S., Rehabilitation Engineering, Mechanical Engineering, Vol. 106, No. 9, pp. 56-65, September, 1984.

Childress, D.S., Remarks Made on Technology at the Opening of ICRT SPEECH - Grand Forks, ND 10/23/84.

Clech, J.P., Keer, L.M., and Lewis, J.L., A Crack Model of a Bone Cement Interface, J. of Biomechanical Engineering, Vol. 106, No. 3, pp. 235-243, August, 1984.

Doubler, J.A., and Childress, D.S., Design and Evaluation of a Prosthesis Control System Based on the Concept of Extended Physiological Proprioception, J. of Rehabilitation Research & Development, Vol. 21, No. 1, (BPR) 10-39, pp. 19-31, 1984.

Doubler, J.A., and Childress, D.S., An Analysis of Extended Physiological Proprioception as a Prosthesis Control Technique, J. of Rehabilitation Research & Development, Vol. 21, No. 1, pp. 5-18, 1984.

Hanmer, R.S., Bachrach, W.E., A Three-Dimensional Nonhomogeneous Scaling and Deformation Analysis System Using Interactive Computer Graphics, SCALE, Northwestern University Rehabilitation Engineering Program. October 1984.

Heckathorne, C.W., and Leibowitz, L., The Microdec II System: Integrated Device Control and Computer Access, Proceedings of the 1984 CTG (Closing the Gap) Conference, pp. 81-87, 1984.

Heckathorne, C., Leibowitz, L., and Voda, J., The Epson HX-20 Computer as a Dynamic Display Portable Communication Aid: Developments and Clinical Evaluations, Proceedings of the Third International Conference on Augmentative and Alternative Communication, p. 61, Cambridge, MA, October, 1984.

Lewis, J.L., Lew, W.D., Patrnchak, C.M., and Shybut, G.T., A New Concept in Orthotics Joint Design. The Northwestern University Knee Orthosis System, Orthotics and Prosthetics, Vol. 37, No. 4, pp. 15-23, 1984.

Lewis, J.L., Lew, W.D., Stulberg, S.D., Patrnchak, C.M., and Shybut, G.T., A New Concept in Orthotics - The Northwestern University Knee Orthosis System Part II: The Complete Orthosis, Orthotics and Prosthetics, Vol. 38, No. 1, pp. 13-28, Spring, 1984.

Lewis, J.L., Askew, M.J., Wixson, R.L., Kramer, G.M., and Tarr, R.R., The Influence of Prosthesis Stem Stiffness and Calcar Collar on Stresses in The Proximal Femur with a Cemented Femoral Component, J. of Bone & Joint Surgery, Vol. 66A, pp. 280-286, 1984.

Lewis, J.L., Finite Elements in Biomechanics, Book Review, EMB Magazine, 1984.

Schnur, D.S., Lewis, J.L., Structural Modeling and Design of Knee Orthoses, Advances in Engineering, ASME, pp. 80-83, 1984.

Zand, M.S., Santare, M., Lewis, J.L., and Wixson, R.L., Bone Cement Pressure Distribution During Insertion of Posted Tibial Components, Proceedings of the 30th Annual ORS Conference, Vol. 9, pg. 60, 1984.