Branson, P.J., Steege, J.W., Wixson, R.L., Lewis, J.L., Stulberg, S.D., Rigidity of Initial Fixation with Non-cemented Tibial Knee Implants, Journal of Arthroplasty, Vol. 4, No. 1, pp. 21-26, 1989.

Chan, R. B., Childress, D.S., Determination of Some Gait Characteristics of Freely Selected Human Walking by Optimization Methods and An Inverted Pendulum Model Modeling and Control Issues in Biomechanical Systems, DSC.-Vol. 12, BED-Vol. 11, pp. 67-72, 1988.

Chan, R.B., Childress, D.S., Some Theoretical Equations on Information Transmission in Human-Machine Systems, Proceedings of the 23rd Annual Conference on Manual Control, June 23-24, 1988, MIT, Cambridge, MA.

Childress, D.S., Rovick, J.S., Some Fundamental Studies: A Short Overview of CAD CAM Investigations at Northwestern University/VA Lakeside Medical Center, Proceedings of the International Society for Prosthetics and Orthotics (ISPO) Workshop on CAD/CAM in Prosthetics and Orthotics, pp. 55-59, Seattle, WA, June 8-12, 1988.

Childress, D.S., Stein, R.B., (Chairmen of Signals and Sensors Session) Neural Prostheses: Motor System, Proceedings of the Engineering Foundation Conference, p. 51, Trout Lodge, Potosi, MO, 17-22 1988.

Childress, D.S., Biological Mechanisms as Potential Sources of Feedback and Control in Prostheses: Possible Applications, Amputation Surgery & Lower Limb Prosthetics, Chapter 25, pp. 197-203, eds., Murdoch, G., Donovan, R.G., 1988.

Childress, D.S., Control Philosophies for Limb Prostheses Progress in Bioengineering, Proceedings of an International Seminar-25th Anniversary of the Strathclyde Bioengineering Unit, Glasgow., Chapter 38, pp. 210-215, eds., Paul, J.P, Barbenel, J.C., Courtney, J.M., and Kenedi, R.M., 1988.

Mesplay, K.P., Childress, D.S., Capacity of the Human Operator to Move Joints As Control Inputs to Prostheses Modeling and Control Issues in Biomechanical Systems, DSC-Vol. 12, BED-Vol. 11, pp. 17-25, 1988.

Novotny, M.P., Academy Report: Academy Consumer Liaison ALMANAC, Vol. 37, No. 9, pp. 68-69, Sept. 1988.

Pfrommer, M.C., Pushing Buttons: The TAAD Center Lets You Do It, DORS Openers Newsletter, Spring 1988, pp. 1 & 3.

Rovick, J.S., Van Vorhis, R.L., A Priori Prosthesis Alignment and CAD/CAM Production Methods, Proceedings of the International Society for Prosthetics and Orthotics (ISPO) Workshop on CAD/CAM in Prosthetics and Orthotics, pp. 60-70, Seattle, WA, June 8-12, 1988.

Rovick, J., and Childress, D.S., Pendular Model of Paraplegic Swing-Through Crutch Ambulation, J. of Rehabilitation Research And Development, Vol. 25, No. 4, pp. 1-16, Fall, 1988. 0191

Silver-Thorn, M.B., Winters, J.M., Heckathorne, C.W., Muscle Imbalance and Osteoarthritis of the Knee Advances in Bioengineering, Proceedings of the American Society of Mechanical Engineers (ASME), 1988.

Steege, J.W., Childress, D.S., Finite Element Modeling of the Below-Knee Socket and Limb: Phase II Modeling and Control Issues in Biomechanical Systems, DSC-Vol. 12, BED-Vol. 11, pp. 121-129, 1988. 0379

Steege, J.W., Childress, D.S., Finite Element Prediction of Pressure at the Below-Knee Socket Interface, Proceedings of the International Society for Prosthetics and Orthotics (ISPO) Workshop on CAD/CAM in Prosthetics and Orthotics, pp. 71-82, Seattle, WA, June 8-12, 1988.

Van Vorhis, R.L., Childress, D.S., Kinematic Aspects of the Canadian Hip Disarticulation Prosthetics: Preliminary Results, Amputation Surgery and Lower Limb Prosthetics, Blackwell Scientific Publications, pp. 245-249, 1988.

Vannah, W.M., Childress, D.S., Steege, J.W., Qualitative Aspects of the Mechanical Response of Living Muscular Tissue Under Compressive Loads, Proceedings of the 12th Annual Meeting of the American Society of Biomechanics, pp. 214-215, Sept. 28-30, 1988, Champaign, Ill.

Vannah, W.M., Childress, D.S., An Investigation of the Three-Dimensional Mechanical Response of Bulk Muscular Tissue: Experimental Methods and Results Computational Methods in Bioengineering, Proceedings of the 1988 ASME Winter Annual Meeting, BED Vol. 9, pp. 493-503, eds., Spilker, R.L., Simon, B.R.

Winters, J.M., Fuller, J.J., and Silver-Thorn, M.B., Muscle Activity During 3-D Movements at Complex Joints: Changing Synergism, Proceedings of the 10th Annual Conference of the IEEE Engineering Medicine and Biology Society, 1988.