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Plica Stutter Test

Plica Stutter Test


Name
Purpose
Description
Sensitivity, Specificity
Validity, Reliability
Likelihood Ratio +/-
Plica “Stutter” Test
To test for plica injury
“The patient is seated on the edge of the examining table with both knees flexed to 90 degrees.
The examiner places a finger over one patella to palpate during movement. The patient is then instructed to slowly extend the knee. If the test is positive, the patella stutters or jumps somewhere between 60 degrees and 45 degrees of flexion (0 degrees being straight leg) during an otherwise smooth movement. The test is effective only if there is no joint swelling.”[1]
 
 
 
 
 



[1] Magee DJ. Orthopedic Physical Assessment: 5th Edition. St. Louis, MO: Saunders Elsevier;2008.