Journal of Veterinary Clinics (한국임상수의학회지)

The Korean Society of Veterinary Clinics (한국임상수의학회)
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Determination of Femoral and Tibial Joint Reference Angles in Small-breed Dogs

  • Kim, Jooho (College of Veterinary Medicine, Chonbuk National University) ;
  • Heo, Suyoung (College of Veterinary Medicine, Chonbuk National University) ;
  • Na, Jiyoung (College of Veterinary Medicine, Chonbuk National University) ;
  • Kim, Namsoo (College of Veterinary Medicine, Chonbuk National University) ;
  • Kim, Minsu (College of Veterinary Medicine, Chonbuk National University) ;
  • Jeong, Seongmok (College of Veterinary Medicine, Chungnam National University) ;
  • Lee, HaeBeom (College of Veterinary Medicine, Chungnam National University)
  • Received : 2015.03.27
  • Accepted : 2015.12.21
  • Published : 2016.12.30
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Abstract

The present study determined the normal reference ranges for the femoral and tibial joint orientation angles of small-breed dogs. For this purpose, 60 each of cadaveric canine femurs and tibias from normal small-breed dogs (Maltese, Poodle, Shih Tzu, Yorkshire Terrier) were examined with radiographs and photographs. Axial and frontal radiographs and photographs of each bone were obtained, from which anteversion and inclination angles, anatomic lateral proximal and distal femoral angles (aLPFA and aLDFA), mechanical lateral proximal and distal femoral angles (mLPFA and mLDFA), and mechanical medial proximal and distal tibial angles (mMPTA and mMDTA) were measured. The 95% CI for radiographic values of all femurs and tibiae were anteversion angle, $23.4-27.4^{\circ}$; inclination angle, $128.4-130.4^{\circ}$; aLPFA, $117.8-122.1^{\circ}$; aLDFA, $93.7-95.2^{\circ}$; mLPFA $113.8-117.3^{\circ}$; mLDFA $99.2-100.5^{\circ}$; mMPTA $96.8-98.5^{\circ}$; mMDTA $89.4-90.7^{\circ}$. The Maltese had a larger anteversion angle than the Poodle and the Yorkshire Terrier and a larger mLPFA than the Poodle. In the comparison between the radiographs and the photographs, significant differences were found in the anteversion angle, mLPFA, mMPTA, and mMDTA. The established normal reference values might be useful for determining whether a valgus or varus deformity of the femur or the tibia is present and if so, the degree of angular correction needed.

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References

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