Validation of a technique to assess radial torsion in the presence of procurvatum and valgus deformity using computed tomography: a cadaveric study

Veterinary Surgery : VS
Stacy D MeolaCassidy L Rist

Abstract

To validate a technique to assess radial torsion with and without procurvatum and valgus deformity using computed tomography (CT). Anatomic study. Radii (n=3) from normal dogs. Three cadaveric radii were scanned using CT (3 mm slices). Transverse image sections were assessed at the distal and proximal physeal scar parallel to the joint surface in both sagittal and dorsal planes. Anatomic landmarks of the radius were identified and torsion was measured. A hinged Ilizarov circular external skeletal fixator was constructed to create known procurvatum, valgus, and torsional deformities. Between observers results were highly correlated for calculation of torsion (r=0.972, r(2)=0.9448, P<.00001). Mean baseline torsion of the radius in the construct was 4.88 degrees . At 20 degrees procurvatum and valgus, mean calculated torsion was 5.07 degrees (confidence interval [CI]=4.6-5.6 degrees ). At 20 degrees procurvatum and valgus with 22.5 degrees -induced torsion, mean measured torsion was 25.4 degrees (expected=27.38 degrees ; CI=22.7-28.1 degrees ). At 40 degrees procurvatum and valgus and 45 degrees -induced torsion, mean measured torsion was 51.1 degrees (expected=49.88 degrees ; CI=-49.2 to 53.0 degrees ). Assessment of radial torsi...Continue Reading

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Citations

Jan 31, 2012·Veterinary and Comparative Orthopaedics and Traumatology : V.C.O.T·L A PirasD Fox
Jul 14, 2017·Journal of the American Veterinary Medical Association·Sun-Young KimCharles E DeCamp
Sep 25, 2018·Veterinary Surgery : VS·Katheryn CooleyJason A Bleedorn
Mar 2, 2019·Veterinary Surgery : VS·Emanouil P PetkovJaeil Ahn
Aug 23, 2020·Animals : an Open Access Journal From MDPI·Hee-Ryung LeeNam Soo Kim
May 2, 2020·Veterinary and Comparative Orthopaedics and Traumatology : V.C.O.T·Darren R CarwardineKevin J Parsons
Oct 16, 2021·Veterinary Surgery : VS·Lorenz P SchweinsbergChristoph J Lischer

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