Vastus Lateralis Special Tests

Thomas Test

To do:

The client should be supine with their gluteal folds off the end of the table and hips and knees flexed.

The client can hold onto their legs in flexion with their hands.

Next, the client then keeps the unaffected leg flexed and slowly lowers the affected leg, while letting it extend as far as it can.

Postive sign:

Short quads: affected knee stays extended

Short Psoas: the hip remains flexed.

Short TFL/ITB: abducted hip 

Clarke’s Patellofemoral Grinde Test

To do:

The client is in a supine with their knees extended

The therapist compresses on the patella posteriorly onto the femoral condyles and then moderately moves the patella distally.

The therapist instructs the client to contract the quads. 

Positive sign:

Pain, crepitus, apprehension 

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