The TT-PCL distance is a measure of tibial tubercle-to-posterior cruciate ligament (TT-PCL) distance.

It is a measurement of pure lateralisation of the tibial tubercle, and requires these images in its calculation.


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Use of TT-PCL versus TT-TG. Brady JM, Rosencrans AS and Shubin Stein BE. Curr Rev Musculoskelet Med. 2018 Jun; 11(2): 261–265.

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