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A Mechanical Comparison of Traditional and Minimally Invasive Acetabular Reamers for Total Hip Arthroplasty

[+] Author Affiliations
Kari L. Puma, Mark T. Ehrensberger

State University of New York at Buffalo, Buffalo, NY

Paper No. DETC2014-35692, pp. V003T12A003; 2 pages
  • ASME 2014 International Design Engineering Technical Conferences and Computers and Information in Engineering Conference
  • Volume 3: 16th International Conference on Advanced Vehicle Technologies; 11th International Conference on Design Education; 7th Frontiers in Biomedical Devices
  • Buffalo, New York, USA, August 17–20, 2014
  • Conference Sponsors: Design Engineering Division, Computers and Information in Engineering Division
  • ISBN: 978-0-7918-4634-6
  • Copyright © 2014 by ASME


Minimally invasive (MIS) total hip arthroplasty is a recently advanced and popularized technique in orthopaedic surgery. The smaller incision site requires the use of small surgical instruments. The purpose of this study was to perform a biomechanical comparison of the cutting efficiency of traditional acetabular reamers and newly designed minimally invasive reamers for use in total hip arthroplasty. Both types of reamers were tested in two different sample materials, Bonesim™ and RenShape®. This study concluded that the new MIS and the traditional acetabular reamers are comparable in their mechanical performances with respect to the force and torque produced while reaming.

Copyright © 2014 by ASME
Topics: Arthroplasty



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