Femoral procurvation angle

Femoral procurvation angle

  • Acronym: FPA

Definition

Stephan Mahler

The femoral procurvation angle is a measurement used to assess angular deformities of the femur and provide guidance for corrections.

It is determined from a medio-lateral radiograph or multiplanar reconstruction of the femur. In radiography, positioning is considered satisfactory if the medial condyle and lateral condyle are superimposed.

The femoral procurvation angle is the angle formed by the proximal anatomic femoral axis and the distal anatomic femoral axis.

The following values have been published for the femoral procurvation angle:

  • Poodles: 12.7 +/- 4.1° (Radiograph) (Yasukawa et al. 2016)

  • Chihuahuas: 9.1 +/- 2.9° (Radiograph) (Phetkaew et al. 2018)

  • Poodles: 11.2 +/- 5.72° (CT) (Yasukawa et al. 2016)

  • Chihuahuas: 11.7 +/- 3.4° (CT) (Phetkaew et al. 2018)

References

  • Phetkaew T, Kalpravidh M, Penchome R, Wangdee C. A Comparison of Angular Values of the Pelvic Limb with Normal and Medial Patellar Luxation Stifles in Chihuahua Dogs Using Radiography and Computed Tomography. Vet Comp Orthop Traumatol. 2018 Feb;31(2):114-123. doi: 10.3415/VCOT-17-05-0067. Epub 2018 Mar 13. Erratum in: Vet Comp Orthop Traumatol. 2018 Feb;31(2):a1.

  • 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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