I. Indications

  1. Evaluation of Patellofemoral Syndrome
  2. Evaluation for Patella subluxation
  3. Evaluation for Patella dislocation

II. Technique

  1. Patient lies supine
    1. Knee flexed to 30 degrees or
    2. Knee in full extension
  2. Examiner applies pressure from medial Patella
    1. Patella forced laterally by medial pressure
  3. Patient tightens quadriceps muscle
    1. Positive test is painful
    2. Patient may refuse to do this in anticipation of pain
  4. Images
    1. orthoKneePatellarApprehension.jpg

III. Interpretation: Positive Test if painful

  1. Patellofemoral Syndrome
  2. Lateral patellofemoral instability
  3. Patellar Subluxation (recent acute Knee Injury)

Images: Related links to external sites (from Google)

Ontology: Apprehension test response (C0231741)

Concepts Clinical Attribute (T201)
SnomedCT 364508000, 53820009
English Aprehension test, Apprehension test, Aprehension test response (observable entity), Aprehension test response, Apprehension test response (observable entity), Apprehension test response, Apprehension sign, Apprehension sign (finding)
Spanish respuesta a la prueba de aprehensión (entidad observable), respuesta a la prueba de aprehensión, signo de aprehensión (hallazgo), signo de aprehensión