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VOLUME 10 , ISSUE 1 ( April, 2015 ) > List of Articles

Original Article

Mechanical rigidity of the Ortho-SUV frame compared to the Ilizarov frame in the correction of femoral deformity

Petr V. Skomoroshko, Victor A. Vilensky, Ahmed I. Hammouda, Matt D. A. Fletcher, Leonid N. Solomin

Keywords : Osteotomy, Fracture, Biomechanical stability, External fixator, Hexapod, Rigidity of osteosynthesis

Citation Information : Skomoroshko PV, Vilensky VA, Hammouda AI, Fletcher MD, Solomin LN. Mechanical rigidity of the Ortho-SUV frame compared to the Ilizarov frame in the correction of femoral deformity. 2015; 10 (1):5-11.

DOI: 10.1007/s11751-015-0214-6

License: CC BY-NC-SA 4.0

Published Online: 30-04-2015

Copyright Statement:  Copyright © 2015; Jaypee Brothers Medical Publishers (P) Ltd.


Abstract

The Ortho-SUV frame (OSF) is a novel hexapod circular external fixator which draws upon the innovation of the Ilizarov method and the advantages of hexapod construction in the three-dimensional control of bone segments. Stability of fixation is critical to the success or failure of an external circular fixator for fracture or osteotomy healing. In vitro biomechanical modelling study was performed comparing the stability of the OSF under load in both original form and after dynamisation to the Ilizarov fixator in all zones of the femur utilising optimal frame configuration. A superior performance of the OSF in terms of resistance to deforming forces in both original and dynamised forms over that of the original Ilizarov fixator was found. The OSF shows higher rigidity than the Ilizarov in the control of forces acting upon the femur. This suggests better stabilisation of femoral fractures and osteotomies and thus improved healing with a reduced incidence of instability-related bone segment deformity, non-union and delayed union.


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