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.
Highlights
The use of circular external fixation is reported extensively in the orthopaedic literature [1, 2]
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
The Ortho-SUV frame (OSF, Pitkar Orthotools, Pune, India) is a novel computer-aided hexapod fixator which addresses a number of deficits seen in other hexapod fixators
Summary
The use of circular external fixation is reported extensively in the orthopaedic literature [1, 2]. The Ilizarov method has evolved to be used with a new generation of hexapod fixators which provide a number of benefits over the traditional design [3,4,5] These have been employed with increasing frequency for the management of multiple pathologies [5]. The Ortho-SUV frame (OSF, Pitkar Orthotools, Pune, India) is a novel computer-aided hexapod fixator which addresses a number of deficits seen in other hexapod fixators. It has the advantage of a modular and changeable construction that can be customised to the limb segment more than other devices. There is a risk of loss of position, excessive motion, failure of union or consolidation and pain. With too much rigidity, the biologically desirable characteristics of stimulation through micromovement are diminished, with delayed consolidation and possible non-union [6, 7]
Sign-in/Register to view highlights & summary Sign-in/Register to access full text options 
Free) 
Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Schedule a call
