Anatomic-mechanical axis angle

Anatomic-mechanical axis angle

  • Acronym: a-mAA

Definition

Stephan Mahler

The anatomic-mechanical axis angle is a measurement used to assess angular deformities of the tibia and provide guidance for corrections. It is determined in the sagittal plane, from a mediolateral radiograph of the tibial.

The anatomic-mechanical axis angle is determined as the angle formed by the anatomic tibial axis and the mechanical tibial axis.

Guénégo et al. (2017) found that the anatomic-mechanical axis was 0.74° (0-5.40) in healthy dogs.

References

  • Guénégo L, Payot M, Charru P, Verwaerde P. Comparison of tibial anatomic-mechanical axis angle between predisposed dogs and dogs at low risk for cranial cruciate ligament rupture. Vet J. 2017 Jul;225:35-41. doi: 10.1016/j.tvjl.2017.04.011. Epub 2017 May 3. PMID: 28720297.

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