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Vet Comp Orthop Traumatol 2003; 16(02): 82-87
DOI: 10.1055/s-0038-1632764
Original Research
Schattauer GmbH

Influence of the connecting rod on the biomechanical properties of five external skeletal fixation configurations

D. G. Bronson
1   Seay Center for Musculoskeletal Research, Texas Scottish Rite Hospital, Dallas, TX, USA
,
J. D. Ross
1   Seay Center for Musculoskeletal Research, Texas Scottish Rite Hospital, Dallas, TX, USA
,
J. P. Toombs
2   Department of Veterinary Clinical Sciences, School of Veterinary Medicine, Purdue University, West Lafayette, IN, USA
,
R. D. Welch
1   Seay Center for Musculoskeletal Research, Texas Scottish Rite Hospital, Dallas, TX, USA
› InstitutsangabenFunding for this project was provided by the Research Fund at Texas Scottish Rite Hospital for Children. IMEX Veterinary, Inc. provided components examined in this manuscript. IMEX Veterinary, Inc. pays royalties to the investigating institution from the sale of some components examined in this manuscript.
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Publikationsverlauf

Received 22. Oktober 2002

Accepted 30. November 2002

Publikationsdatum:
22. Februar 2018 (online)

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Summary

A recently developed external skeletal fixation system (SK™, IMEX Veterinary, Inc.) utilizes larger diameter connecting rods, therefore overcoming one of the weaknesses of the original Kirschner-Ehmer (KE) system. The purpose of the current study was to compare five typical external fixator constructs in axial compression, torsion, Cranial-Caudal (C-C) and Medial-Lateral (M-L) bending to determine the effect of the larger connecting rods on frame stiffness. The results demonstrate that the larger connecting rod has a significant effect on overall frame stiffness. The use of two or more full-pins, as in the type II and III techniques nullified the contribution of the connecting rod diameter and frame stiffness was more a factor of pin size, number and orientation.

Keywords

External fixation - biomechanics - Kirschner-Ehmer - SK™ - connecting rod
 

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