Femoral varus angle - 狗 - 轴和角度 - 股骨[股骨] - vet-Anatomy
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Femoral varus angle

Femoral varus angle

定义

Stephan Mahler

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股骨内翻角（FVA）是一种用于评估股骨角度畸形并为矫正手术提供指导的测量指标。其测量基于髋关节腹背位X线片或股骨多平面重建CT图像。

在X线摄影采集方面，犬取背卧位，后肢向尾侧伸展，两侧股骨相互平行。若满足以下条件，则认为体位摆放合格：

股骨内翻角定义为额状面内股骨解剖轴与垂直于股骨远端关节定向线的直线之间的夹角。

目前已发表的健康犬股骨内翻角参考值如下：

  • 小型犬：5.5°（最小值3°–最大值23°）（X线摄影）Garnoeva et al. 2018

  • 中大型犬：9.4 +/- 2.3°（X线摄影）Dudley et al. 2006

  • 博美犬：5.85 +/- 3.18°（X线摄影）Soparat et al. 2012

  • 玩具贵宾犬：4.4 +/- 4.1°（X线摄影）Yasukawa et al. 2016

  • 约克夏梗：5.63 +/- 2.11°（X线摄影）Žilinčík et al. 2018

  • 玩具贵宾犬：0.3 +/- 2.8（CT）Yasukawa et al. 2016

  • 中大型犬：8.8 +/- 3.3（CT）Dudley et al. 2006

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參考資料

  • Garnoeva, R, Roydev, R, Paskalev, M et al. Radiographic measures of pelvic limb malalignment in small breed dogs with various grades of medial patellar luxation. Comp Clin Pathol 2018;27, 1551–1555. doi.org/10.1007/s00580-018-2772-8

  • Dudley RM, Kowaleski MP, Drost WT, Dyce J. Radiographic and computed tomographic determination of femoral varus and torsion in the dog. Vet Radiol Ultrasound. 2006 Oct-Nov;47(6):546-52. doi: 10.1111/j.1740-8261.2006.00184.x.

  • Soparat C, Wangdee C, Chuthatep S, Kalpravidh M. Radiographic measurement for femoral varus in Pomeranian dogs with and without medial patellar luxation. Vet Comp Orthop Traumatol. 2012;25(3):197-201. doi: 10.3415/VCOT-11-04-0057. Epub 2012 Jan 27.

  • Žilinčík M, Hluchý M, Takáč L, Ledecký V. Comparison of Radiographic Measurements of the Femur in Yorkshire Terriers with and without Medial Patellar Luxation. Vet Comp Orthop Traumatol. 2018 Jan;31(1):17-22. doi: 10.3415/VCOT-17-01-0018. Epub 2018 Jan 11.

  • Yasukawa S, Edamura K, Tanegashima K, Seki M, Teshima K, Asano K, Nakayama T, Hayashi K. Evaluation of bone deformities of the femur, tibia, and patella in Toy Poodles with medial patellar luxation using computed tomography. Vet Comp Orthop Traumatol. 2016;29(1):29-38. doi: 10.3415/VCOT-15-05-0089. Epub 2015 Dec 7.

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