Double Delta Sign and Deep Lateral Sulcus Sign

Bucket Handle Tear Lateral Meniscus. Chronic ACL Tear

Deep Lateral Sulcus Sign (Deep Femoral Notch Sign) and ACL Tear

Strictly a plain film sign, the deep lateral femoral notch (sulcus) sign is a secondary sign of an ACL tear (rotational and valgus force).

The Lateral Femoral Notch Sign -- June 2001 Radiology, 219, 800-801.

http://radiology.rsna.org/content/219/3/800.full