Revision arthroplasty facilitated by ultrasonic tool cement removal. An evaluation of whole bone strength in a canine model.

Journal Article (Journal Article)

Ultrasonic driven tools have been developed to facilitate the removal of bone cement during revision arthroplasty. The effect on whole bone strength of cement removal by ultrasonic tools was examined in a canine femur model. Paired, fresh-frozen canine femora were divided into two groups. In group A, one femur from each pair was subjected to cement extraction with ultrasonic tools. In group B, one femur from each pair was subjected to manual cement extraction. Contralateral femora from each pair served as controls to determine the strength of intact femora. Torsional fractures were produced using a servocontrolled hydraulic testing machine (Minneapolis Testing System, Minneapolis, MN). Maximum torque, maximum angle, and energy capacity to failure were determined. Results were recorded as a reduction in percent value of the tested specimen versus the contralateral control. When comparing femora with cement removal by ultrasonic tools to the contralateral control femur, there were no statistical differences in ultimate torque (P = .83), maximum angle (P = .89), and energy capacity (P = .74) by analysis of variance. In addition, there were no significant differences between the group with ultrasonic tool cement removal and the group with manual tool removal. The authors conclude that in this canine model, removal of cement with ultrasonically driven tools has no adverse effects on whole bone strength.

Full Text

Duke Authors

Cited Authors

  • Callaghan, JJ; Elder, SH; Stranne, SK; Fulghum, CF; Seaber, AV; Myers, BS

Published Date

  • December 1992

Published In

Volume / Issue

  • 7 / 4

Start / End Page

  • 495 - 500

PubMed ID

  • 1479368

Electronic International Standard Serial Number (EISSN)

  • 1532-8406

International Standard Serial Number (ISSN)

  • 0883-5403

Digital Object Identifier (DOI)

  • 10.1016/s0883-5403(06)80070-7


  • eng