1. Comparison of canine femoral torsion measurements using the axial and biplanar methods on three-dimensional volumetric reconstructions of computed tomography images
- Author
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Boris M Serck, Michael P. Kowaleski, and W Michael Karlin
- Subjects
Measurement method ,General Veterinary ,medicine.diagnostic_test ,business.industry ,Femoral torsion ,Reproducibility of Results ,Computed tomography ,Dogs ,Imaging, Three-Dimensional ,medicine ,Animals ,Femur ,Dog Diseases ,Bone Diseases ,business ,Nuclear medicine ,Tomography, X-Ray Computed ,Reference standards - Abstract
Objective To compare the results of the measurement of femoral torsion using the axial measurement method on three-dimensional (3D) volumetric reconstructions of computed tomography images AMM(CT), the biplanar measurement method on 3D volumetric reconstructions of computed tomography images BMM(CT) and a reference standard using the axial measurement method on stereolithographic bone models AMM (SBM). Study design Ex vivo study. Sample populations Three-dimensional volumetric reconstructions of computed tomography images and stereolithographic bone models from 23 femurs of 14 dogs with hind limb lameness presented for orthopedic evaluation. Methods Three-dimensional volumetric reconstructions of computed tomography images and stereolithographic bone models of each femur were created from computed tomography data. Femoral torsion was measured using the AMM (CT) and the BMM (CT) and compared with a reference standard, the AMM (SBM). Results No differences were noted among the measurement methods (P = .0863). Median measurement of femoral torsion using the AMM (CT) was 34.2°, the BMM (CT) was 36.7°, and the AMM (SBM) was 32.3°. Conclusion No differences existed among the AMM (CT), the BMM (CT), and the AMM (SBM). Clinical significance Both AMM (CT) and BMM (CT) can be used to measure femoral torsion in dogs with orthopedic disease.
- Published
- 2021