Which two tests are used to evaluate ACL integrity?

Which two tests are used to evaluate ACL integrity?

• A. Anterior Drawer & Lachman’s Test
• B. McMurray Test & Apley
• C. Thessaly Test & Pivot Shift
• D. Varus Stress Test & Valgus Stress

Answer: (A)

The ACL’s job is to stop the tibia from sliding forward under the femur, so assessing ACL integrity focuses on anterior tibial translation and the feel of the endpoint when you test. The Lachman test places the knee in about 20–30 degrees of flexion to put the ACL under tension, and you compare how the tibia moves and what the end feel is with the other knee. A noticeably increased amount of forward movement, or a soft or absent firm end-feel, strongly suggests an ACL tear. The Anterior Drawer test uses a 90-degree knee bend to check for the same forward translation. It’s a useful complement to Lachman, especially when the knee is not ideal for Lachman or when you want a second way to confirm increased anterior translation. Together, these two tests target the ACL’s main function and provide reliable evidence of its integrity. The other options involve tests for the menisci or the collateral ligaments, or include an ACL test that is less central in routine ACL evaluation, so they don’t pair as the primary duo for ACL integrity.

The ACL’s job is to stop the tibia from sliding forward under the femur, so assessing ACL integrity focuses on anterior tibial translation and the feel of the endpoint when you test. The Lachman test places the knee in about 20–30 degrees of flexion to put the ACL under tension, and you compare how the tibia moves and what the end feel is with the other knee. A noticeably increased amount of forward movement, or a soft or absent firm end-feel, strongly suggests an ACL tear. The Anterior Drawer test uses a 90-degree knee bend to check for the same forward translation. It’s a useful complement to Lachman, especially when the knee is not ideal for Lachman or when you want a second way to confirm increased anterior translation. Together, these two tests target the ACL’s main function and provide reliable evidence of its integrity. The other options involve tests for the menisci or the collateral ligaments, or include an ACL test that is less central in routine ACL evaluation, so they don’t pair as the primary duo for ACL integrity.