A mechanical comparison of the dynamic compression plate, limited contact-dynamic compression plate, and point contact fixator

T. Miclau, A. Remiger, S. Tepic, R. Lindsey, T. McIff

Research output: Contribution to journalArticlepeer-review

72 Scopus citations

Abstract

Cortical bone porosis associated with the dynamic compression plate (DCP) prompted the development of the limited-contact dynamic compression plate (LC-DCP) and the point-contact fixator (PC-Fix) to increase bone vascularity. However, the comparative fixation characteristics of the three designs are unknown. Transverse fractures were physiologically created in paired cadaveric sheep tibiae, which were plated before torsion testing and four-point bending to failure. The tibiae were grouped randomly and compared as follows: DCP versus LC-DCP, DCP versus PC-Fix, and LC-DCP versus PC-Fix. Mean torque to failure demonstrated no significant difference between the three plates (p < 0.33). Mean bending stiffness, gap opening, and moment to failure also demonstrated no significant difference between the three designs with p < 0.29, < 0.13, and < 0.16, respectively. The LC-DCP and PC-Fix have torsion and bending properties comparable with the DCP in the fixation of simple transverse diaphyseal fractures.

Original languageEnglish (US)
Pages (from-to)17-22
Number of pages6
JournalJournal of orthopaedic trauma
Volume9
Issue number1
DOIs
StatePublished - Feb 1995
Externally publishedYes

Keywords

  • Biomechanics
  • Compression plates
  • Diaphysis fixation
  • Fracture fixation

ASJC Scopus subject areas

  • Surgery
  • Orthopedics and Sports Medicine

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