SLOCUM TEST WITH

INTERNAL TIBIA ROTATION

​• Test positioning

The client lies supine with the test hip flexed to 45-degrees, knee flexed to 90-degrees, and tibia internally rotated 15 to 20 degrees.

The therapist sits on the client's foot with both hands behind the client's proximal tibia and thumbs on the tibial plateau.

​• Action

Apply an anterior force to the proximal tibia.

The hamstring tendons should be palpated frequently with the index fingers to ensure relaxation.

​• Positive finding

Increased anterior tibial displacement, particularly of the lateral tibial condyle, as compared to the uninvolved side is indicative of anterolateral rotary instability (secondary to a partial or complete tear of primarily the ACL and posterolateral capsule).

​• Special considerations & comments

The therapist must avoid maximally rotating the tibia, as this will tighten most of the surrounding structures and create a high potential for false-negative findings.