JPO 1998 Vol. 10, Num. 1

2
Frequency Content of Prosthetic and Orthotic Shapes: A Requirement for CAD/CAM Digitizer Performance
Jeffrey A. Hastings
William M. Vannah, PhD
Joseph A. Stand III
David M. Harning, CPO
David M. Drvaric, MD
This study quantifies the frequency content of the surface bumpiness in shapes encountered in prosthetic and orthotic practice. This information is vital in evaluating digitizers for use in prosthetic and orthotic CAD/CAM.
 
7
Fitting a Knee Disarticulation as a BK Utilizing the ALPS Locking Pin as a Pseudo-Tibial Lever: A Single Case Review
Jason M. Jennings, CPO
Leslie D. Wontorcik, CP
The authors describe their experience using the locking pin of an ALPS Clear Pro liner as a pseudo-tibial lever when fitting a knee disarticulation.
 
11
Determination of Stress Distribution In Various Ankle-Foot Orthoses: Experimental Stress Analysis
Tai-Ming Chu, PhD
Rong Feng, MS
The authors share the results of experimental stress analyses conducted on various ankle-foot orthoses.
 
17
Stereolithography and Prosthetic Test Socket Manufacture: A Cost/Benefit Analysis
Donald Freeman
Leslie Wontorcik, CP
The authors compare stereolithography against traditional casting techniques for prosthetic test socket manufacture and perform a cost analysis.
 
21
A Vacuum Donning Procedure for Transfemoral Suction Suspension Prostheses
Harry Layton, CPO
The author presents an alternative method of donning, a combination of wet donning and vacuum, for transfemoral amputees who use suction as their primary form of suspension.