In vitro biomechanical testing of different configurations of acrylic external skeletal fixator constructs

Veterinary and Comparative Orthopaedics and Traumatology : V.C.O.T
Surbhi Kuldeep TyagiD N Madhu

Abstract

To evaluate the in vitro biomechanical properties of four different configurations of acrylic external skeletal fixator constructs. Simulated bone constructs were prepared using two segments of 20 mm ultra-high-density polyethylene rods with a gap of 5 mm. The full pins (1.5 mm) were passed through the proximal and distal segments of ultra-high-density polyethylene rods, in the same plane, parallel to each other in configuration U, and were crossed in the M1, M2 and C configurations at a 90° angle to each other. Configuration U was a single bilateral uniplanar construct, M1 was a double orthogonal bilateral construct, M2 was a double orthogonal bilateral construct with proximal and distal connecting articulations, and C was a double orthogonal bilateral construct with proximal and distal circumferential articulations. Temporary scaffolds of different external skeletal fixator configurations were constructed using commercially available polyvinyl chloride pipes (20 mm) connected and secured to the fixation pins at a fixed distance from the rods. Acrylic powder (polymer) mixed with liquid (monomer) was poured into the pipes and allowed to solidify to form the side bars and rings. The external skeletal fixator constructs were then...Continue Reading

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Citations

Oct 2, 2015·Veterinary and Comparative Orthopaedics and Traumatology : V.C.O.T·G Smith
Oct 30, 2015·Veterinary and Comparative Orthopaedics and Traumatology : V.C.O.T·H P AithalD N Madhu

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