Journal of Veterinary Clinics (한국임상수의학회지)

The Korean Society of Veterinary Clinics (한국임상수의학회)
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Effects of Osteotomy Angle on Tibial Angulation and Torsion During CORA-Based Leveling Osteotomy in Toy Breed Dogs: A Computer Modeling-Based Study

  • Jeong, Youngeun (College of Veterinary Medicine, Chungnam National University) ;
  • Jeong, Jaemin (College of Veterinary Medicine, Chungnam National University) ;
  • Cho, Cheongwoon (College of Veterinary Medicine, Chungnam National University) ;
  • Jeong, SeongMok (College of Veterinary Medicine, Chungnam National University) ;
  • Lee, Hae Beom (College of Veterinary Medicine, Chungnam National University)
  • Received : 2020.03.31
  • Accepted : 2020.08.03
  • Published : 2020.08.31
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Abstract

The objective of this study was to determine the effect of osteotomy angle and tibial proximal segment rotation angle on angular and torsional tibial deformities and to assess the trends of these deformities during the rotation of the tibial proximal segment in a center of rotation of angulation (CORA)-based leveling osteotomy (CBLO) by performing computer modeling of the tibia. Four tibias of toy breed dogs with no history of lameness were used in this study. Osteotomies were performed in the proximal tibias at angles of 0°, 10°, 20°, -10°, and -20°, perpendicular to either the proximodistal or craniocaudal tibial axes. The mechanical medial proximal tibial angle (mMPTA) and transcondylar (TC) and distal cranial tibial (CnT) axes were used to measure angular and torsional deformities, respectively. All tibias showed an increase in angular and rotational deformities with an increase in the tibial plateau rotation angle. The tibia with osteotomies performed in the proximodistal and craniocaudal directions showed the highest magnitude of torsional and angular deformities, respectively. The results of this study revealed a tendency of occurrence of angular and torsional deformities with osteotomy performed along the proximodistal and craniocaudal directions in the CBLO.

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References

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