Tibial plateau orientation - Dog - axes and angles - Tibia - vet-Anatomy
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Tibial plateau orientation

Tibial plateau orientation

  • Acronym: TPO

Definition

Stephan Mahler

The tibial plateau orientation is a measurement used to assess the anatomy of the tibia and its modification in predisposed dogs or dogs at risk for cranial cruciate ligament rupture. It is determined from a mediolateral radiograph of the tibia. The X-ray beam is centered at the stifle joint. Positioning is considered satisfactory if the medial condyle and lateral condyle are superimposed.

The tibial plateau orientation is defined as the angle between the anatomic tibial axis and the proximal tibial joint orientation line.

Osmond et al. 2006 found that the tibial plateau orientation in dogs >20 kg dogs was 25.1+/-3.6°

References

  • Osmond CS, Marcellin-Little DJ, Harrysson OL, Kidd LB. Morphometric assessment of the proximal portion of the tibia in dogs with and without cranial cruciate ligament rupture. Vet Radiol Ultrasound. 2006 Mar-Apr;47(2):136-41. doi: 10.1111/j.1740-8261.2006.00119.x. PMID: 16553144.

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