Test: Patellar apprehension test

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Background/Purpose

This is a test that is performed for the clinical identification of lateral patellar instability.

Procedure

The moving patellar apprehension test is executed in two parts. The first part is a provocation based test. The physician place the knee in a straight position the examiner places the knee to be examined into full extension. A horizontal force is applied to the patella with the examiners thumb. The examiner then gradually moves the knee from straight position to 90 deg of flexion and then returning to full extension while maintaining the laterally applied force .The second aspect of the test is similar to part one, the change exist that a medially applied force is executed with the index finger on the patella., moving to the straight position to 90 degree angle while maintaining the applied force.
Performed: Bilaterally

Dialog

A moving patellar apprehension test.

Criteria

• orally expressed apprehension
• testing the stability of patella

Measurement

90.00 degrees

LOINC Code

0

Scale/Grading

Pass/Fail