Accession Number : ADA305486

Title :   Simulated Studies of Wear and Friction in Total Hip Prosthesis Components with Various Ball Sizes and Surface Finishes.

Descriptive Note : Technical note,

Corporate Author : NATIONAL AERONAUTICS AND SPACE ADMINISTRATION CLEVELAND OH LEWIS RESEARCH CEN TER

Personal Author(s) : Swikert, Max A. ; Johnson, Robert L.

PDF Url : ADA305486

Report Date : MAR 1976

Pagination or Media Count : 29

Abstract : Experiments were conducted on a newly designed total hip joint simulator. The apparatus closely simulates the complex motions and loads of the human hip in normal walking. The wear and friction of presently used appliance configurations and materials were determined. A surface treatment of the metal femoral ball specimens was applied to influence wear. The results of the investigation indicate that wear can be reduced by mechanical treatment of metal femoral ball surfaces. A metallographic examination and surface roughness measurements were made. Experiments were conducted on a newly designed total hip joint simulator. The apparatus closely simulates the complex motions and loads of the human hip in normal walking. The wear and friction of presently used appliance configurations and materials were determined. A surface treatment of the metal femoral ball specimens was applied to influence wear. The results of the investigation indicate that wear can be reduced by mechanical treatment of metal femoral ball surfaces. A metallographic examination and surface roughness measurements were made.

Descriptors :   *WEAR, *FRICTION, *HIP, *PROSTHETICS, SIMULATORS, METALS, MEASUREMENT, MECHANICAL PROPERTIES, LOADS(FORCES), SURFACE FINISHING, WALKING, SURFACE ROUGHNESS, MOTION, JOINTS(ANATOMY), METALLOGRAPHY, BALL JOINTS.

Subject Categories : Medicine and Medical Research
      Properties of Metals and Alloys

Distribution Statement : APPROVED FOR PUBLIC RELEASE