Comparison of the mechanical performance of trochanteric fixation devices

Christopher K. Hersh, Ronald P. Williams, Lorence W. Trick, Dan Lanctot, Kyriacos Athanasiou

Research output: Contribution to journalArticle

38 Citations (Scopus)

Abstract

The transtrochanteric surgical approach to the hip is commonly used, especially for revision hip surgery. Failure of the trochanter to heal can lead to hardware failure, persistent pain, and limp. Rigid internal fixation is needed in this approach to achieve an adequate rate of healing. Newer cable and cable grip systems have been designed to improve trochanteric fixation, but have not been compared to the older Charnley wire fixation techniques. In this study, an in vitro mechanical method previously used to test wire fixation methods was used to compare wire, cable, and cable grip fixation methods. A quasistatic mechanical distraction device was used to compare structural stiffness, load to clinical failure, energy to clinical failure, and maximum load resisted by the fixation devices. The cable grip system was found to be stiffer, to resist a larger load to mechanical failure at 1-cm displacement, and to absorb a greater amount of energy to clinical failure when compared with the other systems. These data suggest that use of the cable grip fixation method should result in improved clinical success compared with the Charnley wire technique.

Original languageEnglish (US)
Pages (from-to)317-325
Number of pages9
JournalClinical Orthopaedics and Related Research
Issue number329
StatePublished - 1996
Externally publishedYes

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Hand Strength
Equipment and Supplies
Hip
Reoperation
Femur
Pain

ASJC Scopus subject areas

  • Surgery
  • Orthopedics and Sports Medicine

Cite this

Hersh, C. K., Williams, R. P., Trick, L. W., Lanctot, D., & Athanasiou, K. (1996). Comparison of the mechanical performance of trochanteric fixation devices. Clinical Orthopaedics and Related Research, (329), 317-325.

Comparison of the mechanical performance of trochanteric fixation devices. / Hersh, Christopher K.; Williams, Ronald P.; Trick, Lorence W.; Lanctot, Dan; Athanasiou, Kyriacos.

In: Clinical Orthopaedics and Related Research, No. 329, 1996, p. 317-325.

Research output: Contribution to journalArticle

Hersh, CK, Williams, RP, Trick, LW, Lanctot, D & Athanasiou, K 1996, 'Comparison of the mechanical performance of trochanteric fixation devices', Clinical Orthopaedics and Related Research, no. 329, pp. 317-325.
Hersh CK, Williams RP, Trick LW, Lanctot D, Athanasiou K. Comparison of the mechanical performance of trochanteric fixation devices. Clinical Orthopaedics and Related Research. 1996;(329):317-325.
Hersh, Christopher K. ; Williams, Ronald P. ; Trick, Lorence W. ; Lanctot, Dan ; Athanasiou, Kyriacos. / Comparison of the mechanical performance of trochanteric fixation devices. In: Clinical Orthopaedics and Related Research. 1996 ; No. 329. pp. 317-325.
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