tibial translation
The anterior or posterior movement of the tibia relative to the femur, measured during knee stability testing.
Full Definition
Tibial translation refers to the linear displacement of the tibia in relation to the femur, typically measured in the anterior-posterior plane during clinical examination of knee stability. This measurement is crucial in assessing ligamentous injuries, particularly ACL and PCL tears. Anterior tibial translation is evaluated using tests such as the Lachman test and anterior drawer test, while posterior translation is assessed with the posterior drawer test. Increased translation compared to the contralateral limb suggests ligamentous insufficiency and guides treatment decisions in sports medicine.
Usage
Usage note: Always specify direction (anterior/posterior) and quantify when possible.
In Context
- "The KT-1000 arthrometer measured 8mm of anterior tibial translation, indicating ACL insufficiency." — Physical examination
- "Posterior tibial translation was grade 2+ on manual testing, suggesting PCL injury." — Clinical assessment