Peri-prosthetic fracture vibration testing

Jesse Cruce, Jenny Erwin, Kevin Remick, Phillip Comwell, R. Michajel Meneghini, Joe Racanelli

Research output: Chapter in Book/Report/Conference proceedingConference contribution

1 Scopus citations

Abstract

The purpose of this study was to establish a test setup and vibration analysis method to predict femoral stem seating and prevent bone fracture using accelerometer and force response data from ain instrumented stem and impactor. This study builds upon earlier studies to identify a means to supplement a surgeon's tactile and auditory senses by using damage identification techniques normally used for civil and mechanical structures. Testing was conducted using foam cortical shell sawbones prepared for stems of different geometries. Each stem was instrumented with an accelerometer. Two impactor designs were compared: a monolithic impactor and a two-piece impactor, each with an integrated load cell and accelerometer. Acceleration and force measurements were taken in the direction of impaction. Comparisons between different methods of applying an impacting force were made, including a drop tower and a surgical hammer. The effect of varying compliance on the data was also investigated. The ultimate goal of this study was to assist in the design of an integrated portable data acquisition system capable of being used in future cadaveric testing. This paper will discuss the experimental setup and the subsequent results of the comparisons made between impactors, prosthetic geometries, compliances, and impact methods. The results of this study can be used for both future replicate testing as well as in a cadaveric environment.

Original languageEnglish (US)
Title of host publicationSensors, Instrumentation and Special Topics - Proceedings of the 29th IMAC, a Conference on Structural Dynamics, 2011
Pages207-225
Number of pages19
StatePublished - Jun 13 2011
Event29th IMAC, a Conference on Structural Dynamics, 2011 - Jacksonville, FL, United States
Duration: Jan 31 2011Feb 3 2011

Publication series

NameConference Proceedings of the Society for Experimental Mechanics Series
Volume6
ISSN (Print)2191-5644
ISSN (Electronic)2191-5652

Other

Other29th IMAC, a Conference on Structural Dynamics, 2011
CountryUnited States
CityJacksonville, FL
Period1/31/112/3/11

ASJC Scopus subject areas

  • Engineering(all)
  • Computational Mechanics
  • Mechanical Engineering

Cite this

Cruce, J., Erwin, J., Remick, K., Comwell, P., Meneghini, R. M., & Racanelli, J. (2011). Peri-prosthetic fracture vibration testing. In Sensors, Instrumentation and Special Topics - Proceedings of the 29th IMAC, a Conference on Structural Dynamics, 2011 (pp. 207-225). (Conference Proceedings of the Society for Experimental Mechanics Series; Vol. 6).