論文

査読有り 国際誌
2020年5月14日

Effect of Limb Position on Measurements of the Quadriceps Muscle Length/Femoral Length Ratio in Normal Beagle Dogs.

Veterinary and comparative orthopaedics and traumatology : V.C.O.T
  • Sawako Murakami
  • ,
  • Yukari Nagahiro
  • ,
  • Masakazu Shimada
  • ,
  • Nobuo Kanno
  • ,
  • Shuji Suzuki
  • ,
  • Takuya Yogo
  • ,
  • Yasuji Harada
  • ,
  • Yasushi Hara

記述言語
英語
掲載種別
研究論文(学術雑誌)
DOI
10.1055/s-0040-1702235

OBJECTIVES:  Dogs with patella alta reportedly have a shorter extensor mechanism than normal dogs. The present study aimed to measure the length of the extensor mechanism and to assess the effect of limb position on the quadriceps muscle length (QML)/femoral bone length (FL) ratio. STUDY DESIGN:  Three-dimensional computed tomography images were taken of 12 Beagle dogs. Each dog underwent computed tomographic imaging 24 times with different limb positions. The QML/FL was measured on each image, along with the hip flexion-extension, hip abduction-adduction and stifle flexion-extension angles. Multiple regression analysis was used to determine the effect of these angles on the QML/FL. RESULTS:  The QML/FL was increased with the hip extended (standardized partial regression coefficient 0.855 with linear plotting, 0.829 with log plotting) and with the stifle flexed (standardized partial regression coefficient 0.814 with linear plotting, 0.800 with log plotting). The partial regression coefficient of the hip abduction-adduction angle was small, indicating a small impact on the QML/FL. The 95% confidence range of the QML/FL with the hip extended and stifle flexed was 0.87 to 1.00 (mean ± standard deviation: 0.93 ± 0.03). CONCLUSION:  The QML/FL was more influenced by joint angles when the hip was flexed or the stifle was extended. Hence, these positions should be avoided when evaluating the QML/FL so that the QML is less altered by slight positioning disparities.

リンク情報
DOI
https://doi.org/10.1055/s-0040-1702235
PubMed
https://www.ncbi.nlm.nih.gov/pubmed/32408359
ID情報
  • DOI : 10.1055/s-0040-1702235
  • PubMed ID : 32408359

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