The drive-through sign is when the arthroscopic surgeon during the arthroscopy sees an abnormally big space at the back of the knee joint on the lateral side.


Significance of the Drive-Through sign

A 'drive-through' sign is an indication of damage to structures in the posterolateral corner of the knee.

drive-thru sign


The "lateral gutter drive-through" sign: an arthroscopic indicator of acute femoral avulsion of the popliteus tendon in knee joints. Feng H, Zhang H, Hong L, Wang XS, Zhang J. Arthroscopy. 2009 Dec;25(12):1496-9. doi: 10.1016/j.arthro.2009.08.005.

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